diff --git a/city_model_structure/city.py b/city_model_structure/city.py
index 9f6b0e0a..9465f368 100644
--- a/city_model_structure/city.py
+++ b/city_model_structure/city.py
@@ -2,7 +2,6 @@
 City module
 SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2020 Project Author Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
-Contributor Peter Yefi peteryefi@gmail.com
 """
 from __future__ import annotations
 import sys
@@ -19,361 +18,372 @@ from city_model_structure.city_objects_cluster import CityObjectsCluster
 from city_model_structure.buildings_cluster import BuildingsCluster
 from city_model_structure.parts_consisting_building import PartsConsistingBuilding
 from city_model_structure.subway_entrance import SubwayEntrance
+from city_model_structure.fuel import Fuel
 from helpers.geometry_helper import GeometryHelper
 from helpers.location import Location
 from city_model_structure.energy_system import EnergySystem
 
 
 class City:
-    """
+  """
   City class
   """
 
-    def __init__(self, lower_corner, upper_corner, srs_name):
-        self._name = None
-        self._lower_corner = lower_corner
-        self._upper_corner = upper_corner
-        self._buildings = None
-        self._subway_entrances = None
-        self._srs_name = srs_name
-        self._geometry = GeometryHelper()
-        # todo: right now extracted at city level, in the future should be extracted also at building level if exist
-        self._location = None
-        self._country_code = None
-        self._climate_reference_city = None
-        self._climate_file = None
-        self._latitude = None
-        self._longitude = None
-        self._time_zone = None
-        self._buildings_clusters = None
-        self._parts_consisting_buildings = None
-        self._city_objects_clusters = None
-        self._city_objects = None
-        self._energy_systems = None
+  def __init__(self, lower_corner, upper_corner, srs_name):
+    self._name = None
+    self._lower_corner = lower_corner
+    self._upper_corner = upper_corner
+    self._buildings = None
+    self._subway_entrances = None
+    self._srs_name = srs_name
+    self._geometry = GeometryHelper()
+    # todo: right now extracted at city level, in the future should be extracted also at building level if exist
+    self._location = None
+    self._country_code = None
+    self._climate_reference_city = None
+    self._climate_file = None
+    self._latitude = None
+    self._longitude = None
+    self._time_zone = None
+    self._buildings_clusters = None
+    self._parts_consisting_buildings = None
+    self._city_objects_clusters = None
+    self._city_objects = None
+    self._energy_systems = None
+    self._fuels = None
 
-    def _get_location(self) -> Location:
-        if self._location is None:
-            gps = pyproj.CRS('EPSG:4326')  # LatLon with WGS84 datum used by GPS units and Google Earth
-            try:
-                input_reference = pyproj.CRS(self.srs_name)  # Projected coordinate system from input data
-            except pyproj.exceptions.CRSError:
-                sys.stderr.write('Invalid projection reference system, please check the input data. '
-                                 '(e.g. in CityGML files: srs_name)\n')
-                sys.exit()
-            transformer = Transformer.from_crs(input_reference, gps)
-            coordinates = transformer.transform(self.lower_corner[0], self.lower_corner[1])
-            self._location = GeometryHelper.get_location(coordinates[0], coordinates[1])
-        return self._location
+  @property
+  def fuels(self) -> [Fuel]:
+    return self._fuels
 
-    @property
-    def country_code(self):
-        """
+  @fuels.setter
+  def fuels(self, value):
+    self._fuels = value
+
+
+  def _get_location(self) -> Location:
+    if self._location is None:
+      gps = pyproj.CRS('EPSG:4326')  # LatLon with WGS84 datum used by GPS units and Google Earth
+      try:
+        input_reference = pyproj.CRS(self.srs_name)  # Projected coordinate system from input data
+      except pyproj.exceptions.CRSError:
+        sys.stderr.write('Invalid projection reference system, please check the input data. '
+                         '(e.g. in CityGML files: srs_name)\n')
+        sys.exit()
+      transformer = Transformer.from_crs(input_reference, gps)
+      coordinates = transformer.transform(self.lower_corner[0], self.lower_corner[1])
+      self._location = GeometryHelper.get_location(coordinates[0], coordinates[1])
+    return self._location
+
+  @property
+  def country_code(self):
+    """
     Get city country code
     :return: str
     """
-        return self._get_location().country
+    return self._get_location().country
 
-    @property
-    def name(self):
-        """
+  @property
+  def name(self):
+    """
     Get city name
     :return: str
     """
-        return self._get_location().city
+    return self._get_location().city
 
-    @property
-    def climate_reference_city(self) -> Union[None, str]:
-        """
+  @property
+  def climate_reference_city(self) -> Union[None, str]:
+    """
     Get the name for the climatic information reference city
     :return: None or str
     """
-        return self._climate_reference_city
+    return self._climate_reference_city
 
-    @climate_reference_city.setter
-    def climate_reference_city(self, value):
-        """
+  @climate_reference_city.setter
+  def climate_reference_city(self, value):
+    """
     Set the name for the climatic information reference city
     :param value: str
     """
-        if value is not None:
-            self._climate_reference_city = str(value)
+    if value is not None:
+      self._climate_reference_city = str(value)
 
-    @property
-    def climate_file(self) -> Union[None, Path]:
-        """
+  @property
+  def climate_file(self) -> Union[None, Path]:
+    """
     Get the climate file full path
     :return: None or Path
     """
-        return self._climate_file
+    return self._climate_file
 
-    @climate_file.setter
-    def climate_file(self, value):
-        """
+  @climate_file.setter
+  def climate_file(self, value):
+    """
     Set the climate file full path
     :param value: Path
     """
-        if value is not None:
-            self._climate_file = Path(value)
+    if value is not None:
+      self._climate_file = Path(value)
 
-    @property
-    def city_objects(self) -> Union[List[CityObject], None]:
-        """
+  @property
+  def city_objects(self) -> Union[List[CityObject], None]:
+    """
     Get the city objects belonging to the city
     :return: None or [CityObject]
     """
-        if self._city_objects is None:
-            if self.city_objects_clusters is None:
-                self._city_objects = []
-            else:
-                self._city_objects = self.city_objects_clusters
-            if self.buildings is not None:
-                for building in self.buildings:
-                    self._city_objects.append(building)
-            if self.subway_entrances is not None:
-                for subway_entrance in self.subway_entrances:
-                    self._city_objects.append(subway_entrance)
-            if self.energy_systems is not None:
-                for energy_system in self.energy_systems:
-                    self._city_objects.append(energy_system)
-        return self._city_objects
+    if self._city_objects is None:
+      if self.city_objects_clusters is None:
+        self._city_objects = []
+      else:
+        self._city_objects = self.city_objects_clusters
+      if self.buildings is not None:
+        for building in self.buildings:
+          self._city_objects.append(building)
+      if self.subway_entrances is not None:
+        for subway_entrance in self.subway_entrances:
+          self._city_objects.append(subway_entrance)
+      if self.energy_systems is not None:
+        for energy_system in self.energy_systems:
+          self._city_objects.append(energy_system)
+    return self._city_objects
 
-    @property
-    def buildings(self) -> Union[List[Building], None]:
-        """
+  @property
+  def buildings(self) -> Union[List[Building], None]:
+    """
     Get the buildings belonging to the city
     :return: None or [Building]
     """
-        return self._buildings
+    return self._buildings
 
-    @property
-    def subway_entrances(self) -> Union[List[SubwayEntrance], None]:
-        """
+  @property
+  def subway_entrances(self) -> Union[List[SubwayEntrance], None]:
+    """
     Get the subway entrances belonging to the city
     :return: a list of subway entrances objects or none
     """
-        return self._subway_entrances
+    return self._subway_entrances
 
-    @property
-    def lower_corner(self) -> List[float]:
-        """
+  @property
+  def lower_corner(self) -> List[float]:
+    """
     Get city lower corner
     :return: [x,y,z]
     """
-        return self._lower_corner
+    return self._lower_corner
 
-    @property
-    def upper_corner(self) -> List[float]:
-        """
+  @property
+  def upper_corner(self) -> List[float]:
+    """
     Get city upper corner
     :return: [x,y,z]
     """
-        return self._upper_corner
+    return self._upper_corner
 
-    def city_object(self, name) -> Union[CityObject, None]:
-        """
+  def city_object(self, name) -> Union[CityObject, None]:
+    """
     Retrieve the city CityObject with the given name
     :param name:str
     :return: None or CityObject
     """
-        for city_object in self.buildings:
-            if city_object.name == name:
-                return city_object
-        return None
+    for city_object in self.buildings:
+      if city_object.name == name:
+        return city_object
+    return None
 
-    def add_city_object(self, new_city_object):
-        """
+  def add_city_object(self, new_city_object):
+    """
     Add a CityObject to the city
     :param new_city_object:CityObject
     :return: None or not implemented error
     """
-        if new_city_object.type == 'building':
-            if self._buildings is None:
-                self._buildings = []
-            self._buildings.append(new_city_object)
-        elif new_city_object.type == 'subway_entrance':
-            if self._subway_entrances is None:
-                self._subway_entrances = []
-            self._subway_entrances.append(new_city_object)
-        elif new_city_object.type == 'energy_system':
-            if self._energy_systems is None:
-                self._energy_systems = []
-            self._energy_systems.append(new_city_object)
-        else:
-            raise NotImplementedError(new_city_object.type)
+    if new_city_object.type == 'building':
+      if self._buildings is None:
+        self._buildings = []
+      self._buildings.append(new_city_object)
+    elif new_city_object.type == 'subway_entrance':
+      if self._subway_entrances is None:
+        self._subway_entrances = []
+      self._subway_entrances.append(new_city_object)
+    elif new_city_object.type == 'energy_system':
+      if self._energy_systems is None:
+        self._energy_systems = []
+      self._energy_systems.append(new_city_object)
+    else:
+      raise NotImplementedError(new_city_object.type)
 
-    def remove_city_object(self, city_object):
-        """
+  def remove_city_object(self, city_object):
+    """
     Remove a CityObject from the city
     :param city_object:CityObject
     :return: None
     """
-        if city_object.type != 'building':
-            raise NotImplementedError(city_object.type)
-        if self._buildings is None or self._buildings == []:
-            sys.stderr.write('Warning: impossible to remove city_object, the city is empty\n')
-        else:
-            if city_object in self._buildings:
-                self._buildings.remove(city_object)
+    if city_object.type != 'building':
+      raise NotImplementedError(city_object.type)
+    if self._buildings is None or self._buildings == []:
+      sys.stderr.write('Warning: impossible to remove city_object, the city is empty\n')
+    else:
+      if city_object in self._buildings:
+        self._buildings.remove(city_object)
 
-    @property
-    def srs_name(self) -> Union[None, str]:
-        """
+  @property
+  def srs_name(self) -> Union[None, str]:
+    """
     Get city srs name
     :return: None or str
     """
-        return self._srs_name
+    return self._srs_name
 
-    @name.setter
-    def name(self, value):
-        """
+  @name.setter
+  def name(self, value):
+    """
     Set city name
     :param value:str
     """
-        if value is not None:
-            self._name = str(value)
+    if value is not None:
+      self._name = str(value)
 
-    @staticmethod
-    def load(city_filename) -> City:
-        """
+  @staticmethod
+  def load(city_filename) -> City:
+    """
     Load a city saved with city.save(city_filename)
     :param city_filename: city filename
     :return: City
     """
-        with open(city_filename, 'rb') as file:
-            return pickle.load(file)
+    with open(city_filename, 'rb') as file:
+      return pickle.load(file)
 
-    def save(self, city_filename):
-        """
+  def save(self, city_filename):
+    """
     Save a city into the given filename
     :param city_filename: destination city filename
     :return: None
     """
-        with open(city_filename, 'wb') as file:
-            pickle.dump(self, file)
+    with open(city_filename, 'wb') as file:
+      pickle.dump(self, file)
 
-    def region(self, center, radius) -> City:
-        """
+  def region(self, center, radius) -> City:
+    """
     Get a region from the city
     :param center: specific point in space [x, y, z]
     :param radius: distance to center of the sphere selected in meters
     :return: selected_region_city
     """
-        selected_region_lower_corner = [center[0] - radius, center[1] - radius, center[2] - radius]
-        selected_region_upper_corner = [center[0] + radius, center[1] + radius, center[2] + radius]
-        selected_region_city = City(selected_region_lower_corner, selected_region_upper_corner, srs_name=self.srs_name)
-        selected_region_city.climate_file = self.climate_file
-        #    selected_region_city.climate_reference_city = self.climate_reference_city
-        for city_object in self.city_objects:
-            location = city_object.centroid
-            if location is not None:
-                distance = math.sqrt(math.pow(location[0] - center[0], 2) + math.pow(location[1] - center[1], 2)
-                                     + math.pow(location[2] - center[2], 2))
-                if distance < radius:
-                    selected_region_city.add_city_object(city_object)
-        return selected_region_city
+    selected_region_lower_corner = [center[0] - radius, center[1] - radius, center[2] - radius]
+    selected_region_upper_corner = [center[0] + radius, center[1] + radius, center[2] + radius]
+    selected_region_city = City(selected_region_lower_corner, selected_region_upper_corner, srs_name=self.srs_name)
+    selected_region_city.climate_file = self.climate_file
+#    selected_region_city.climate_reference_city = self.climate_reference_city
+    for city_object in self.city_objects:
+      location = city_object.centroid
+      if location is not None:
+        distance = math.sqrt(math.pow(location[0]-center[0], 2) + math.pow(location[1]-center[1], 2)
+                             + math.pow(location[2]-center[2], 2))
+        if distance < radius:
+          selected_region_city.add_city_object(city_object)
+    return selected_region_city
 
-    @property
-    def latitude(self) -> Union[None, float]:
-        """
+  @property
+  def latitude(self) -> Union[None, float]:
+    """
     Get city latitude in degrees
     :return: None or float
     """
-        return self._latitude
+    return self._latitude
 
-    @latitude.setter
-    def latitude(self, value):
-        """
+  @latitude.setter
+  def latitude(self, value):
+    """
     Set city latitude in degrees
     :parameter value: float
     """
-        if value is not None:
-            self._latitude = float(value)
+    if value is not None:
+      self._latitude = float(value)
 
-    @property
-    def longitude(self) -> Union[None, float]:
-        """
+  @property
+  def longitude(self) -> Union[None, float]:
+    """
     Get city longitude in degrees
     :return: None or float
     """
-        return self._longitude
+    return self._longitude
 
-    @longitude.setter
-    def longitude(self, value):
-        """
+  @longitude.setter
+  def longitude(self, value):
+    """
     Set city longitude in degrees
     :parameter value: float
     """
-        if value is not None:
-            self._longitude = float(value)
+    if value is not None:
+      self._longitude = float(value)
 
-    @property
-    def time_zone(self) -> Union[None, float]:
-        """
+  @property
+  def time_zone(self) -> Union[None, float]:
+    """
     Get city time_zone
     :return: None or float
     """
-        return self._time_zone
+    return self._time_zone
 
-    @time_zone.setter
-    def time_zone(self, value):
-        """
+  @time_zone.setter
+  def time_zone(self, value):
+    """
     Set city time_zone
     :parameter value: float
     """
-        if value is not None:
-            self._time_zone = float(value)
+    if value is not None:
+      self._time_zone = float(value)
 
-    @property
-    def buildings_clusters(self) -> Union[List[BuildingsCluster], None]:
-        """
+  @property
+  def buildings_clusters(self) -> Union[List[BuildingsCluster], None]:
+    """
     Get buildings clusters belonging to the city
     :return: None or [BuildingsCluster]
     """
-        return self._buildings_clusters
+    return self._buildings_clusters
 
-    @property
-    def parts_consisting_buildings(self) -> Union[List[PartsConsistingBuilding], None]:
-        """
+  @property
+  def parts_consisting_buildings(self) -> Union[List[PartsConsistingBuilding], None]:
+    """
     Get parts consisting buildings belonging to the city
     :return: None or [PartsConsistingBuilding]
     """
-        return self._parts_consisting_buildings
+    return self._parts_consisting_buildings
 
-    @property
-    def energy_systems(self) -> Union[List[EnergySystem], None]:
-        """
-      Get energy systems belonging to the city
-      :return: None or [EnergySystem]
-      """
-        return self._energy_systems
+  @property
+  def energy_systems(self) -> Union[List[EnergySystem], None]:
+    """
+  Get energy systems belonging to the city
+  :return: None or [EnergySystem]
+  """
+    return self._energy_systems
 
-    @property
-    def city_objects_clusters(self) -> Union[List[CityObjectsCluster], None]:
-        """
+  @property
+  def city_objects_clusters(self) -> Union[List[CityObjectsCluster], None]:
+    """
     Get city objects clusters belonging to the city
     :return: None or [CityObjectsCluster]
     """
-        if self.buildings_clusters is None:
-            self._city_objects_clusters = []
-        else:
-            self._city_objects_clusters = self.buildings_clusters
-        if self.parts_consisting_buildings is not None:
-            self._city_objects_clusters.append(self.parts_consisting_buildings)
-        return self._city_objects_clusters
+    if self.buildings_clusters is None:
+      self._city_objects_clusters = []
+    else:
+      self._city_objects_clusters = self.buildings_clusters
+    if self.parts_consisting_buildings is not None:
+      self._city_objects_clusters.append(self.parts_consisting_buildings)
+    return self._city_objects_clusters
 
-    def add_city_objects_cluster(self, new_city_objects_cluster):
-        """
+  def add_city_objects_cluster(self, new_city_objects_cluster):
+    """
     Add a CityObject to the city
     :param new_city_objects_cluster:CityObjectsCluster
     :return: None or NotImplementedError
     """
-        if new_city_objects_cluster.type == 'buildings':
-            if self._buildings_clusters is None:
-                self._buildings_clusters = []
-            self._buildings_clusters.append(new_city_objects_cluster)
-        elif new_city_objects_cluster.type == 'building_parts':
-            if self._parts_consisting_buildings is None:
-                self._parts_consisting_buildings = []
-            self._parts_consisting_buildings.append(new_city_objects_cluster)
-        else:
-            raise NotImplementedError
+    if new_city_objects_cluster.type == 'buildings':
+      if self._buildings_clusters is None:
+        self._buildings_clusters = []
+      self._buildings_clusters.append(new_city_objects_cluster)
+    elif new_city_objects_cluster.type == 'building_parts':
+      if self._parts_consisting_buildings is None:
+        self._parts_consisting_buildings = []
+      self._parts_consisting_buildings.append(new_city_objects_cluster)
+    else:
+      raise NotImplementedError
diff --git a/city_model_structure/fuel.py b/city_model_structure/fuel.py
new file mode 100644
index 00000000..e78a9f76
--- /dev/null
+++ b/city_model_structure/fuel.py
@@ -0,0 +1,41 @@
+"""
+ConstructionFactory (before PhysicsFactory) retrieve the specific construction module for the given region
+SPDX - License - Identifier: LGPL - 3.0 - or -later
+Copyright © 2020 Project Author Atiya
+"""
+
+class Fuel:
+  def __init__(self, fuel_id, name, carbon_emission_factor, unit):
+    self._fuel_id = fuel_id
+    self._name = name
+    self._carbon_emission_factor = carbon_emission_factor
+    self._unit = unit
+
+  @property
+  def id(self):
+    """
+    Get fuel id
+    """
+    return self._fuel_id
+
+  @property
+  def name(self):
+    """
+    Get fuel name
+    """
+    return self._name
+
+  @property
+  def carbon_emission_factor(self):
+    """
+    Get fuel carbon emission factor
+    """
+    return self._carbon_emission_factor
+
+  @property
+  def unit(self):
+    """
+    Get fuel units
+    """
+    return self._unit
+
diff --git a/data/life_cicle_analize/lca_data.xml b/data/life_cicle_analize/lca_data.xml
new file mode 100644
index 00000000..bc3ab8ee
--- /dev/null
+++ b/data/life_cicle_analize/lca_data.xml
@@ -0,0 +1,573 @@
+<?xml version="1.0" encoding="utf-8"?>
+<library name="LCA">
+    <Fuels>
+        <fuel id="1" name= "Black_coal">
+            <carbon_emission_factor unit= "kgCO2/ kWh" > 0.32 </carbon_emission_factor>
+        </fuel>
+        <fuel id="2" name= "Brown_coal">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.4 </carbon_emission_factor>
+        </fuel>
+        <fuel id="3" name= "Brown_coal_briquette">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.4 </carbon_emission_factor>
+        </fuel>
+        <fuel id="4" name= "Brown_coal_coke">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.5 </carbon_emission_factor>
+        </fuel>
+        <fuel id="5" name= "CNG">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.18 </carbon_emission_factor>
+        </fuel>
+        <fuel id="6" name= "Coal_coke">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.39 </carbon_emission_factor>
+        </fuel>
+        <fuel id="7" name= "Crude_oil">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.27 </carbon_emission_factor>
+        </fuel>
+        <fuel id="8" name= "Diesel_Machine">
+            <carbon_emission_factor unit= "kgCO2/ liter"> 4.16 </carbon_emission_factor>
+        </fuel>
+        <fuel id="9" name= "Diesel_Vehicle">
+            <carbon_emission_factor unit= "kgCO2/ liter"> 2.24 </carbon_emission_factor>
+        </fuel>
+        <fuel id="10" name= "Ethane">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.2 </carbon_emission_factor>
+        </fuel>
+        <fuel id="11" name= "Fuel_oil">
+            <carbon_emission_factor unit= "kgCO2/ liter"> 3.19 </carbon_emission_factor>
+        </fuel>
+        <fuel id="12" name= "Gas_flared">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 3.53 </carbon_emission_factor>
+        </fuel>
+        <fuel id="13" name= "Kerosene">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.27 </carbon_emission_factor>
+        </fuel>
+        <fuel id="14" name= "LNG">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.21 </carbon_emission_factor>
+        </fuel>
+        <fuel id="15" name= "LPG">
+            <carbon_emission_factor unit= "kgCO2/ liter"> 1.69 </carbon_emission_factor>
+        </fuel>
+        <fuel id="16" name= "Natural_gas">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.21 </carbon_emission_factor>
+        </fuel>
+        <fuel id="17" name= "Petroleum_coke">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.35 </carbon_emission_factor>
+        </fuel>
+        <fuel id="18" name= "UNG">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.18 </carbon_emission_factor>
+        </fuel>
+        <fuel id="19" name= "Biodiesel">
+            <carbon_emission_factor unit= "kgCO2/ liter"> 0.81 </carbon_emission_factor>
+        </fuel>
+        <fuel id="20" name= "Bioethanol">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 1.21 </carbon_emission_factor>
+        </fuel>
+        <fuel id="21" name= "Biogas">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 1.61 </carbon_emission_factor>
+        </fuel>
+        <fuel id="22" name= "Biomass">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 0.11 </carbon_emission_factor>
+        </fuel>
+        <fuel  id="23" name= "Methanol">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 0.3 </carbon_emission_factor>
+        </fuel>
+        <fuel  id="24" name= "Petrol_eightyfive_ethanol">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 1.16 </carbon_emission_factor>
+        </fuel>
+        <fuel  id="25" name= "Steam">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 0.61 </carbon_emission_factor>
+        </fuel>
+    </Fuels>
+    <Machines>
+        <machine name= "Rock_drill">
+            <work_efficiency unit= "h/m3"> 0.347 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 16.5 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Hydraulic_hammer">
+            <work_efficiency unit= "h/m3"> 0.033 </work_efficiency>
+            <energy_consumption_rate unit= "kg_fuel/h"> 25.2 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kg_fuel"> 4.16  </carbon_emission_factor>
+        </machine>
+        <machine name= "Crawler_bulldozer">
+            <work_efficiency unit= "h/m3"> 0.027 </work_efficiency>
+            <energy_consumption_rate unit= "kg_fuel/h3"> 16.8 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kg_fuel"> 2.239 </carbon_emission_factor>
+        </machine>
+        <machine name= "Crawler_excavator">
+            <work_efficiency unit= "h/m3"> 0.023 </work_efficiency>
+            <energy_consumption_rate unit= "kg_fuel/h"> 16.8 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kg_fuel"> 2.239 </carbon_emission_factor>
+        </machine>
+        <machine name= "Crawler_hydraulic_rock_crusher">
+            <work_efficiency unit= "h/m3"> 0.109 </work_efficiency>
+            <energy_consumption_rate unit= "kg_fuel/h"> 25.2 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kg_fuel"> 2.239 </carbon_emission_factor>
+        </machine>
+        <machine name= "Mobile_recycling_equipment">
+            <work_efficiency unit= "h/ton"> 0.003 </work_efficiency>
+            <energy_consumption_rate unit= "kg_fuel/h"> 16.4 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kg_fuel"> 4.16 </carbon_emission_factor>
+        </machine>
+        <machine name= "Vibration_feeder">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 11 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Jaw_crusher">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 90 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Electromagnetic_separator">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 10 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Wind_sorting_machine">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 11 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Impact_crusher">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 132 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Double_circular_vibrating_plug">
+            <work_efficiency unit= " h/ton "> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 15 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kW"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Spiral_sand_washing_machine">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 5.5 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Conveyor_belts">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 22.5 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+    </Machines>
+    <Vehicles>
+        <vehicle name= "Freight_lorry_18_ton">
+            <fuel_consumption_rate unit= "kg_fuel/ton.km"> 0.0123 </fuel_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kg_fuel"> 2.239 </carbon_emission_factor>
+        </vehicle>
+        <vehicle name= "Freight_train">
+            <fuel_consumption_rate unit= "kWh/ton.km"> 0.042 </fuel_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </vehicle>
+        <vehicle name= "Freight_ship">
+            <fuel_consumption_rate unit= "kWh/ton.km"> 0.01 </fuel_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 1.00000 </carbon_emission_factor>
+        </vehicle>
+        <vehicle name= "Freight_Air">
+            <fuel_consumption_rate unit= "kWh/ton.km"> 1.3 </fuel_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 1.00000 </carbon_emission_factor>
+        </vehicle>
+    </Vehicles>
+    <Building_materials>
+        <Bricks>
+            <brick id="1"  type= "clay brick">
+                <density unit= "ton/m3"> 1.8 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 560 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0.7 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </brick>
+            <brick id="2"  type= "light clay brick">
+                <density unit= "ton/m3"> 1.2 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 310 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0.7 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </brick>
+            <brick id="3"  type= "refractory">
+                <density unit= "ton/m3"> 2 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3080 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0.7 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </brick>
+            <brick id="4"  type= "sand-lime brick">
+                <density unit= "ton/m3"> 1.4 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 300 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0.7 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </brick>
+        </Bricks>
+        <Concretes>
+            <concrete id="1"  type= "light weight expanded clay">
+                <density unit= "ton/m3"> 1.6 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 900 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="2"  type= "lightweight Expanded perlite">
+                <density unit= "ton/m3"> 1.6 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 2340 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="3"  type= "lightweight expanded vermiculite">
+                <density unit= "ton/m3"> 1.6 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1570 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="4"  type= "lightweight polystyrene">
+                <density unit= "ton/m3"> 1.4 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1840 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="5"  type= "lightweight pumice">
+                <density unit= "ton/m3"> 1.3 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 410 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="6"  type= "concrete 20 MPa">
+                <density unit= "ton/m3"> 2.3 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 160 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="7"  type= "concrete 25 MPa">
+                <density unit= "ton/m3"> 2.3 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 170 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="8"  type= "concrete 30-32 MPa">
+                <density unit= "ton/m3"> 2.3 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 230 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="9"  type= "concrete 35 MPae">
+                <density unit= "ton/m3"> 2.4 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 240 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="10"  type= "concrete 50 MPa">
+                <density unit= "ton/m3"> 2.4 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 280 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="11"  type= "concrete block">
+                <density unit= "ton/m3"> 2.3 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 170 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="12"  type= "concrete roof tile">
+                <density unit= "ton/m3"> 1.2 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 440 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+        </Concretes>
+        <glasses>
+            <glass id="1"  type= "flat glass, coated">
+                <density unit= "ton/m3"> 2.58 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 2660 </embodied_carbon>
+                <recycling_ratio> 0.95 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.05 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </glass>
+            <glass id="2"  type= "glass fibre">
+                <density unit= "ton/m3"> 2.58 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 5260 </embodied_carbon>
+                <recycling_ratio> 0.95 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.05 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </glass>
+        </glasses>
+        <Insulations>
+            <Insulation id="1"  type= "cellulose fibre">
+                <density unit= "ton/m3"> 0.06 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1760 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+            <Insulation id="2"  type= "cork slab">
+                <density unit= "ton/m3"> 0.122 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3080 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+            <Insulation id="3"  type= "polystyren foam">
+                <density unit= "ton/m3"> 0.028 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3180 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+            <Insulation id="4"  type= "polystyrene 10% recycled">
+                <density unit= "ton/m3"> 0.024 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 5140 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+            <Insulation id="5"  type= "stone wool">
+                <density unit= "ton/m3"> 0.1 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 6040 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+            <Insulation id="6"  type= "foam glass">
+                <density unit= "ton/m3"> 0.3 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 5380 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+            <Insulation id="7"  type= "glass wool mat">
+                <density unit= "ton/m3"> 0.032 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 2150 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+        </Insulations>
+        <woods>
+            <wood id="1"  type= "fiberboard, hard">
+                <density unit= "ton/m3"> 0.9 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3420 </embodied_carbon>
+                <recycling_ratio> 0.6 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.4 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </wood>
+            <wood id="2"  type= "three layerd laminated board">
+                <density unit= "ton/m3"> 0.7 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1430 </embodied_carbon>
+                <recycling_ratio> 0.6 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.4 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </wood>
+            <wood id="3"  type= "fibreboard, soft">
+                <density unit= "ton/m3"> 0.65 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 2780 </embodied_carbon>
+                <recycling_ratio> 0.6 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.4 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </wood>
+            <wood id="4"  type= "plywood">
+                <density unit= "ton/m3"> 0.72 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 2190 </embodied_carbon>
+                <recycling_ratio> 0.6 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.4 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </wood>
+        </woods>
+        <coverings>
+            <covering id="1"  type= "acrylic filler">
+                <density unit= "ton/m3"> 1.43 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1070 </embodied_carbon>
+                <recycling_ratio> 0 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0 </company_recycling_ratio>
+                <landfilling_ratio> 1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="2"  type= "anhydrite floor">
+                <density unit= "ton/m3"> 1.43 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 240 </embodied_carbon>
+                <recycling_ratio> 0 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0 </company_recycling_ratio>
+                <landfilling_ratio> 1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="3"  type= "base plaster">
+                <density unit= "ton/m3"> 1.43 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 430 </embodied_carbon>
+                <recycling_ratio> 0 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0 </company_recycling_ratio>
+                <landfilling_ratio> 1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="4"  type= "cement cast plaster floor">
+                <density unit= "ton/m3"> 1.43 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 340 </embodied_carbon>
+                <recycling_ratio> 0 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0 </company_recycling_ratio>
+                <landfilling_ratio> 1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="5"  type= "cement tile">
+                <density unit= "ton/m3"> 1.2 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 440 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="6"  type= "ceramic tile">
+                <density unit= "ton/m3"> 2.1 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1410 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="7"  type= "clay plaster">
+                <density unit= "ton/m3"> 1.43 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 250 </embodied_carbon>
+                <recycling_ratio> 0 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0 </company_recycling_ratio>
+                <landfilling_ratio> 1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="7"  type= "fiber cement corrugated slab">
+                <density unit= "ton/m3"> 1.44 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1480 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="7"  type= "fiber cement facing tile">
+                <density unit= "ton/m3"> 1.44 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 2220 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="7"  type= "gypsum fibreboard">
+                <density unit= "ton/m3"> 1.27 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3960 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="7"  type= "gypsum plaster board">
+                <density unit= "ton/m3"> 1.15 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 760 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+        </coverings>
+        <metals>
+            <metal id="1"  type= "steel">
+                <density unit= "ton/m3"> 8 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3160 </embodied_carbon>
+                <recycling_ratio>  0.98</recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.02 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </metal>
+            <metal id="2"  type= "aluminium">
+                <density unit= "ton/m3"> 2.7 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 5370 </embodied_carbon>
+                <recycling_ratio>  0.98</recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.02 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </metal>
+            <metal id="3"  type= "reinforcing steel">
+                <density unit= "ton/m3"> 7.85 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3910 </embodied_carbon>
+                <recycling_ratio>  0.98</recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.02 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </metal>
+        </metals>
+    </Building_materials>
+</library>
\ No newline at end of file
diff --git a/imports/life_cicle_analize/lca_fuel.py b/imports/life_cicle_analize/lca_fuel.py
new file mode 100644
index 00000000..c35e0749
--- /dev/null
+++ b/imports/life_cicle_analize/lca_fuel.py
@@ -0,0 +1,24 @@
+"""
+CityGml module parses citygml_classes files and import the geometry into the city model structure
+SPDX - License - Identifier: LGPL - 3.0 - or -later
+Copyright © 2020 Project Author Atiya
+"""
+import xmltodict
+from pathlib import Path
+from city_model_structure.fuel import Fuel
+
+class LcaFuel:
+  def __init__(self, city, base_path):
+    self._city = city
+    self._base_path = base_path
+    self._lca = None
+
+  def enrich(self):
+    self._city.fuels = []
+    path = Path(self._base_path / 'lca_data.xml').resolve()
+
+    with open(path) as xml:
+      self._lca = xmltodict.parse(xml.read())
+    for fuel in self._lca["library"]["Fuels"]['fuel']:
+      self._city.fuels.append(Fuel(fuel['@id'], fuel['@name'], fuel['carbon_emission_factor']['#text'],
+                                    fuel['carbon_emission_factor']['@unit']))
diff --git a/imports/life_cicle_analyze_factory.py b/imports/life_cicle_analyze_factory.py
new file mode 100644
index 00000000..7a09097a
--- /dev/null
+++ b/imports/life_cicle_analyze_factory.py
@@ -0,0 +1,33 @@
+"""
+ConstructionFactory (before PhysicsFactory) retrieve the specific construction module for the given region
+SPDX - License - Identifier: LGPL - 3.0 - or -later
+Copyright © 2020 Project Author Atiya
+"""
+
+from pathlib import Path
+from imports.life_cicle_analize.lca_fuel import LcaFuel
+
+
+class LifeCicleAnalizeFactory:
+  """
+  Life cicle analize factory class
+  """
+  def __init__(self, handler, city, base_path=None):
+    if base_path is None:
+      base_path = Path(Path(__file__).parent.parent / 'data/construction')
+    self._handler = '_' + handler.lower().replace(' ', '_')
+    self._city = city
+    self._base_path = base_path
+
+  def _fuel(self):
+    """
+    Enrich the city by adding the fuel carbon information
+    """
+    LcaFuel(self._city, self._base_path).enrich()
+
+  def enrich(self):
+    """
+    Enrich the city given to the class using the class given handler
+    :return: None
+    """
+    getattr(self, self._handler, lambda: None)()
diff --git a/unittests/tests_data/lca_data.xml b/unittests/tests_data/lca_data.xml
new file mode 100644
index 00000000..bc3ab8ee
--- /dev/null
+++ b/unittests/tests_data/lca_data.xml
@@ -0,0 +1,573 @@
+<?xml version="1.0" encoding="utf-8"?>
+<library name="LCA">
+    <Fuels>
+        <fuel id="1" name= "Black_coal">
+            <carbon_emission_factor unit= "kgCO2/ kWh" > 0.32 </carbon_emission_factor>
+        </fuel>
+        <fuel id="2" name= "Brown_coal">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.4 </carbon_emission_factor>
+        </fuel>
+        <fuel id="3" name= "Brown_coal_briquette">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.4 </carbon_emission_factor>
+        </fuel>
+        <fuel id="4" name= "Brown_coal_coke">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.5 </carbon_emission_factor>
+        </fuel>
+        <fuel id="5" name= "CNG">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.18 </carbon_emission_factor>
+        </fuel>
+        <fuel id="6" name= "Coal_coke">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.39 </carbon_emission_factor>
+        </fuel>
+        <fuel id="7" name= "Crude_oil">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.27 </carbon_emission_factor>
+        </fuel>
+        <fuel id="8" name= "Diesel_Machine">
+            <carbon_emission_factor unit= "kgCO2/ liter"> 4.16 </carbon_emission_factor>
+        </fuel>
+        <fuel id="9" name= "Diesel_Vehicle">
+            <carbon_emission_factor unit= "kgCO2/ liter"> 2.24 </carbon_emission_factor>
+        </fuel>
+        <fuel id="10" name= "Ethane">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.2 </carbon_emission_factor>
+        </fuel>
+        <fuel id="11" name= "Fuel_oil">
+            <carbon_emission_factor unit= "kgCO2/ liter"> 3.19 </carbon_emission_factor>
+        </fuel>
+        <fuel id="12" name= "Gas_flared">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 3.53 </carbon_emission_factor>
+        </fuel>
+        <fuel id="13" name= "Kerosene">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.27 </carbon_emission_factor>
+        </fuel>
+        <fuel id="14" name= "LNG">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.21 </carbon_emission_factor>
+        </fuel>
+        <fuel id="15" name= "LPG">
+            <carbon_emission_factor unit= "kgCO2/ liter"> 1.69 </carbon_emission_factor>
+        </fuel>
+        <fuel id="16" name= "Natural_gas">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.21 </carbon_emission_factor>
+        </fuel>
+        <fuel id="17" name= "Petroleum_coke">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.35 </carbon_emission_factor>
+        </fuel>
+        <fuel id="18" name= "UNG">
+            <carbon_emission_factor unit= "kgCO2/ kWh"> 0.18 </carbon_emission_factor>
+        </fuel>
+        <fuel id="19" name= "Biodiesel">
+            <carbon_emission_factor unit= "kgCO2/ liter"> 0.81 </carbon_emission_factor>
+        </fuel>
+        <fuel id="20" name= "Bioethanol">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 1.21 </carbon_emission_factor>
+        </fuel>
+        <fuel id="21" name= "Biogas">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 1.61 </carbon_emission_factor>
+        </fuel>
+        <fuel id="22" name= "Biomass">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 0.11 </carbon_emission_factor>
+        </fuel>
+        <fuel  id="23" name= "Methanol">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 0.3 </carbon_emission_factor>
+        </fuel>
+        <fuel  id="24" name= "Petrol_eightyfive_ethanol">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 1.16 </carbon_emission_factor>
+        </fuel>
+        <fuel  id="25" name= "Steam">
+            <carbon_emission_factor unit= "kgCO2/ kg"> 0.61 </carbon_emission_factor>
+        </fuel>
+    </Fuels>
+    <Machines>
+        <machine name= "Rock_drill">
+            <work_efficiency unit= "h/m3"> 0.347 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 16.5 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Hydraulic_hammer">
+            <work_efficiency unit= "h/m3"> 0.033 </work_efficiency>
+            <energy_consumption_rate unit= "kg_fuel/h"> 25.2 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kg_fuel"> 4.16  </carbon_emission_factor>
+        </machine>
+        <machine name= "Crawler_bulldozer">
+            <work_efficiency unit= "h/m3"> 0.027 </work_efficiency>
+            <energy_consumption_rate unit= "kg_fuel/h3"> 16.8 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kg_fuel"> 2.239 </carbon_emission_factor>
+        </machine>
+        <machine name= "Crawler_excavator">
+            <work_efficiency unit= "h/m3"> 0.023 </work_efficiency>
+            <energy_consumption_rate unit= "kg_fuel/h"> 16.8 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kg_fuel"> 2.239 </carbon_emission_factor>
+        </machine>
+        <machine name= "Crawler_hydraulic_rock_crusher">
+            <work_efficiency unit= "h/m3"> 0.109 </work_efficiency>
+            <energy_consumption_rate unit= "kg_fuel/h"> 25.2 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kg_fuel"> 2.239 </carbon_emission_factor>
+        </machine>
+        <machine name= "Mobile_recycling_equipment">
+            <work_efficiency unit= "h/ton"> 0.003 </work_efficiency>
+            <energy_consumption_rate unit= "kg_fuel/h"> 16.4 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kg_fuel"> 4.16 </carbon_emission_factor>
+        </machine>
+        <machine name= "Vibration_feeder">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 11 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Jaw_crusher">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 90 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Electromagnetic_separator">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 10 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Wind_sorting_machine">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 11 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Impact_crusher">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 132 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Double_circular_vibrating_plug">
+            <work_efficiency unit= " h/ton "> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 15 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kW"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Spiral_sand_washing_machine">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 5.5 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+        <machine name= "Conveyor_belts">
+            <work_efficiency unit= "h/ton"> 0.002 </work_efficiency>
+            <energy_consumption_rate unit= "kWh/h"> 22.5 </energy_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </machine>
+    </Machines>
+    <Vehicles>
+        <vehicle name= "Freight_lorry_18_ton">
+            <fuel_consumption_rate unit= "kg_fuel/ton.km"> 0.0123 </fuel_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kg_fuel"> 2.239 </carbon_emission_factor>
+        </vehicle>
+        <vehicle name= "Freight_train">
+            <fuel_consumption_rate unit= "kWh/ton.km"> 0.042 </fuel_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 0.918 </carbon_emission_factor>
+        </vehicle>
+        <vehicle name= "Freight_ship">
+            <fuel_consumption_rate unit= "kWh/ton.km"> 0.01 </fuel_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 1.00000 </carbon_emission_factor>
+        </vehicle>
+        <vehicle name= "Freight_Air">
+            <fuel_consumption_rate unit= "kWh/ton.km"> 1.3 </fuel_consumption_rate>
+            <carbon_emission_factor unit= "kgCO2/kWh"> 1.00000 </carbon_emission_factor>
+        </vehicle>
+    </Vehicles>
+    <Building_materials>
+        <Bricks>
+            <brick id="1"  type= "clay brick">
+                <density unit= "ton/m3"> 1.8 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 560 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0.7 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </brick>
+            <brick id="2"  type= "light clay brick">
+                <density unit= "ton/m3"> 1.2 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 310 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0.7 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </brick>
+            <brick id="3"  type= "refractory">
+                <density unit= "ton/m3"> 2 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3080 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0.7 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </brick>
+            <brick id="4"  type= "sand-lime brick">
+                <density unit= "ton/m3"> 1.4 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 300 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0.7 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </brick>
+        </Bricks>
+        <Concretes>
+            <concrete id="1"  type= "light weight expanded clay">
+                <density unit= "ton/m3"> 1.6 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 900 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="2"  type= "lightweight Expanded perlite">
+                <density unit= "ton/m3"> 1.6 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 2340 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="3"  type= "lightweight expanded vermiculite">
+                <density unit= "ton/m3"> 1.6 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1570 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="4"  type= "lightweight polystyrene">
+                <density unit= "ton/m3"> 1.4 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1840 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="5"  type= "lightweight pumice">
+                <density unit= "ton/m3"> 1.3 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 410 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="6"  type= "concrete 20 MPa">
+                <density unit= "ton/m3"> 2.3 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 160 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="7"  type= "concrete 25 MPa">
+                <density unit= "ton/m3"> 2.3 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 170 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="8"  type= "concrete 30-32 MPa">
+                <density unit= "ton/m3"> 2.3 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 230 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="9"  type= "concrete 35 MPae">
+                <density unit= "ton/m3"> 2.4 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 240 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="10"  type= "concrete 50 MPa">
+                <density unit= "ton/m3"> 2.4 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 280 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="11"  type= "concrete block">
+                <density unit= "ton/m3"> 2.3 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 170 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+            <concrete id="12"  type= "concrete roof tile">
+                <density unit= "ton/m3"> 1.2 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 440 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </concrete>
+        </Concretes>
+        <glasses>
+            <glass id="1"  type= "flat glass, coated">
+                <density unit= "ton/m3"> 2.58 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 2660 </embodied_carbon>
+                <recycling_ratio> 0.95 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.05 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </glass>
+            <glass id="2"  type= "glass fibre">
+                <density unit= "ton/m3"> 2.58 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 5260 </embodied_carbon>
+                <recycling_ratio> 0.95 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.05 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </glass>
+        </glasses>
+        <Insulations>
+            <Insulation id="1"  type= "cellulose fibre">
+                <density unit= "ton/m3"> 0.06 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1760 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+            <Insulation id="2"  type= "cork slab">
+                <density unit= "ton/m3"> 0.122 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3080 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+            <Insulation id="3"  type= "polystyren foam">
+                <density unit= "ton/m3"> 0.028 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3180 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+            <Insulation id="4"  type= "polystyrene 10% recycled">
+                <density unit= "ton/m3"> 0.024 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 5140 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+            <Insulation id="5"  type= "stone wool">
+                <density unit= "ton/m3"> 0.1 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 6040 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+            <Insulation id="6"  type= "foam glass">
+                <density unit= "ton/m3"> 0.3 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 5380 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+            <Insulation id="7"  type= "glass wool mat">
+                <density unit= "ton/m3"> 0.032 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 2150 </embodied_carbon>
+                <recycling_ratio> 0.9 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </Insulation>
+        </Insulations>
+        <woods>
+            <wood id="1"  type= "fiberboard, hard">
+                <density unit= "ton/m3"> 0.9 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3420 </embodied_carbon>
+                <recycling_ratio> 0.6 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.4 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </wood>
+            <wood id="2"  type= "three layerd laminated board">
+                <density unit= "ton/m3"> 0.7 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1430 </embodied_carbon>
+                <recycling_ratio> 0.6 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.4 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </wood>
+            <wood id="3"  type= "fibreboard, soft">
+                <density unit= "ton/m3"> 0.65 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 2780 </embodied_carbon>
+                <recycling_ratio> 0.6 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.4 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </wood>
+            <wood id="4"  type= "plywood">
+                <density unit= "ton/m3"> 0.72 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 2190 </embodied_carbon>
+                <recycling_ratio> 0.6 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.4 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </wood>
+        </woods>
+        <coverings>
+            <covering id="1"  type= "acrylic filler">
+                <density unit= "ton/m3"> 1.43 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1070 </embodied_carbon>
+                <recycling_ratio> 0 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0 </company_recycling_ratio>
+                <landfilling_ratio> 1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="2"  type= "anhydrite floor">
+                <density unit= "ton/m3"> 1.43 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 240 </embodied_carbon>
+                <recycling_ratio> 0 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0 </company_recycling_ratio>
+                <landfilling_ratio> 1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="3"  type= "base plaster">
+                <density unit= "ton/m3"> 1.43 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 430 </embodied_carbon>
+                <recycling_ratio> 0 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0 </company_recycling_ratio>
+                <landfilling_ratio> 1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="4"  type= "cement cast plaster floor">
+                <density unit= "ton/m3"> 1.43 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 340 </embodied_carbon>
+                <recycling_ratio> 0 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0 </company_recycling_ratio>
+                <landfilling_ratio> 1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="5"  type= "cement tile">
+                <density unit= "ton/m3"> 1.2 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 440 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="6"  type= "ceramic tile">
+                <density unit= "ton/m3"> 2.1 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1410 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="7"  type= "clay plaster">
+                <density unit= "ton/m3"> 1.43 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 250 </embodied_carbon>
+                <recycling_ratio> 0 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 0 </company_recycling_ratio>
+                <landfilling_ratio> 1 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="7"  type= "fiber cement corrugated slab">
+                <density unit= "ton/m3"> 1.44 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 1480 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="7"  type= "fiber cement facing tile">
+                <density unit= "ton/m3"> 1.44 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 2220 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="7"  type= "gypsum fibreboard">
+                <density unit= "ton/m3"> 1.27 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3960 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+            <covering id="7"  type= "gypsum plaster board">
+                <density unit= "ton/m3"> 1.15 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 760 </embodied_carbon>
+                <recycling_ratio> 0.8 </recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.2 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </covering>
+        </coverings>
+        <metals>
+            <metal id="1"  type= "steel">
+                <density unit= "ton/m3"> 8 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3160 </embodied_carbon>
+                <recycling_ratio>  0.98</recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.02 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </metal>
+            <metal id="2"  type= "aluminium">
+                <density unit= "ton/m3"> 2.7 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 5370 </embodied_carbon>
+                <recycling_ratio>  0.98</recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.02 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </metal>
+            <metal id="3"  type= "reinforcing steel">
+                <density unit= "ton/m3"> 7.85 </density>
+                <embodied_carbon unit= "kgCO2/ton"> 3910 </embodied_carbon>
+                <recycling_ratio>  0.98</recycling_ratio>
+                <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+                <company_recycling_ratio> 1 </company_recycling_ratio>
+                <landfilling_ratio> 0.02 </landfilling_ratio>
+                <cost unit= "...."> .... </cost>
+            </metal>
+        </metals>
+    </Building_materials>
+</library>
\ No newline at end of file