| Goods and Services | Advisory and consulting services relating to the mining of metals, mine contracting; air conditioning vent sealing services; air duct cleaning services; assembly services relating to the installation of machines, machine tools and automatic systems for treating and processing metals; buffing of metals; comprehensive preventative maintenance service for electrical systems; construction and maintenance of electricity and steam plants; construction of natural gas infrastructure, pipeline infrastructure, civil electrical underground infrastructure, underground utilities, trenches, and boreholes; construction, maintenance, installation and repair of doors, garage door openers and garage doors, electrical work; consulting services in the field of windstorm damage protection of structures, in particular buildings, using wind flow control devices, shields, and deflectors; electrical contracting services; electrical repair and installation of air conditioners; electrical repair and installation of heaters; electrical repair and installation of lighting; fence installation, hvac installation, kitchen and bathroom countertop installation, ceiling fan installation; freezing equipment installation and repair; furnace and smelter installation and repair; heating equipment installation and repair; installation and repair of air conditioners; installation of electric furnaces for industrial purposes; installation of heating elements; installation of industrial furnaces; installation of residential furnaces; installation of ventilation and dust extraction systems; installation, maintenance and repair of air analysis apparatus; installation, maintenance and repair of air filters; installation, maintenance and repair of air pumps; installation, maintenance and repair of automatic apparatus for opening and closing ventilation flaps; installation, maintenance and repair of control equipment for heating, ventilation and airconditioning; installation, maintenance and repair of fire, smoke and heat alarms; installation, maintenance and repair of heating, ventilating, and air conditioning equipment and systems; installation, maintenance and repair of industrial breathing air systems; installation, maintenance and repair of laminar air flow systems; installation, maintenance and repair of mechanically operated apparatus for opening and closing ventilation flaps; installation, maintenance and repair of refrigeration equipment; installation, maintenance, and repair of machines for compressing, generating, storing, and dispensing hydrogen fuel to air, land, and marine vehicles; installation, repair and maintenance of heat pumps and air conditioners; maintenance and repair of heating elements; maintenance and repair of heating installations; maintenance and repair of parking lots; physical clean-up of exploration and drilling project locations to restore them to their original condition; plumbing contracting services; plumbing installation advisory services; plumbing maintenance advisory services; plumbing repair advisory services; plumbing services; project management in the field of building and infrastructure construction; project management services in the field of building construction and renovation; providing information relating to the repair and maintenance of furnaces; rebricking and rebuilding of furnaces; refrigerator repair services; retrofitting of heating installations in buildings; retrofitting of heating, ventilating and air-conditioning installations in buildings; retrofitting of ventilating installations in buildings; technical consulting on the topic of installation and maintenance of heating, ventilating, and air conditioning equipment and systems; technical support services, namely, providing technical advice and assistance in the field of HVAC system installation and maintenance |
