Non-metallic flexible pipes and hoses being parts of air intake application, heating and air conditioning systems in houses, office buildings and industrial buildings; non-metal flexible pipes of polymer being parts of air intake application, heating and air conditioning systems in houses, office buildings and industrial buildings; rigid pipes of polypropylene being parts of air intake application, heating and air conditioning systems in houses, office buildings and industrial buildings | Non-metal vent cover for hvac ducts; non-metal ventilating ducts
Metal flue gas ducts and ventilating ducts; metal vents and ventilators for roofing and for residential, industrial and commercial use; metal flue gas exhaust or vent pipes; metal combustion air intake pipes; metal pipe bends for flue gas discharge conducts and combustion air pipes; metal pipes for flue gas discharge conducts and combustion air conducts; metal pipe adaptors for flue gas discharge conducts; metal wall discharge terminals for flue gas; metal horizontal discharge terminals; metal roof discharge terminals for flue gas; metal vertical discharge terminals for flue gas; all aforesaid goods for use with ventilation and water heating apparatus | Venting apparatus for heating and water heating systems and exhaust gas and combustion-air apparatus, namely, non-metal vents and ventilators for roofing and for residential, industrial and commercial use; non-metal pipes for heating and water heating systems | Venting apparatus for heating and water heating systems and exhaust gas and combustion-air apparatus, namely, non-metal flue gas exhaust or vent pipes; non-metal combustion air intake pipes; non-metal pipe bends for flue gas discharge conducts and combustion air pipes; non-metal pipes for flue gas discharge conducts and combustion air conducts; non-metal pipe adaptors for flue gas discharge conducts; non-metal wall discharge terminals for flue gas; non-metal horizontal discharge terminals; non-metal roof discharge terminals for flue gas; non-metal vertical discharge terminals for flue gas; all aforesaid goods for use with ventilation and water heating apparatus; non-metal flue gas ducts and ventilating ducts; non-metal roof flashing for flue gas discharge terminals; roof flashings comprised primarily of non-metal material, namely, bitumes; non-metal roof tiles
Transportable buildings of metal; non-electric cables and wires of common metal; pipes and tubes of metal | Solar cells | Gutta-percha; asbestos; mica; plastics in extruded form for use in manufacture; packing materials of rubber or plastics; sealing and insulating materials of rubber or plastics; flexible pipes, not of metal | Non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings | Repair and maintenance of flue gas removal systems and heating and ventilation apparatus; installation of flue gas removal systems; installation of heating and ventilation apparatus
Metal flue gas ducts and ventilating ducts; metal vents and ventilators for roofing and for residential, industrial and commercial use; metal flue gas exhaust or vent pipes; metal combustion air intake pipes; metal pipe bends for flue gas discharge conducts and combustion air pipes; metal pipes for flue gas discharge conducts and combustion air conducts; metal pipe adaptors for flue gas discharge conducts; metal wall discharge terminals for flue gas; metal horizontal discharge terminals; metal roof discharge terminals for flue gas; metal vertical discharge terminals for flue gas; all aforesaid goods for use with ventilation and water heating apparatus | Venting apparatus for heating and water heating systems and exhaust gas and combustion-air apparatus, namely, non-metal vents and ventilators for roofing and for residential, industrial and commercial use; non-metal pipes for heating and water heating systems | Venting apparatus for heating and water heating systems and exhaust gas and combustion-air apparatus, namely, non-metal flue gas exhaust or vent pipes; non-metal combustion air intake pipes; non-metal pipe bends for flue gas discharge conducts and combustion air pipes; non-metal pipes for flue gas discharge conducts and combustion air conducts; non-metal pipe adaptors for flue gas discharge conducts; non-metal wall discharge terminals for flue gas; non-metal horizontal discharge terminals; non-metal roof discharge terminals for flue gas; non-metal vertical discharge terminals for flue gas; all aforesaid goods for use with ventilation and water heating apparatus; non-metal flue gas ducts and ventilating ducts; non-metal roof flashing for flue gas discharge terminals; roof flashings comprised primarily of non-metal material, namely, bitumes; non-metal roof tiles
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