Pipes and tubes of metal; metal waste pipes, metal gutters, metal roof guttering and inspection chambers being metallic drain traps and metal rings therefor; metallic foils, metal plates and metal wire mesh for the installation of floors, heating elements and snow and ice removal systems

Machine tools for installation of tap water systems, floor and radiator heating systems, cooling systems, district heating systems, sewer systems, drainage systems and liquid waste management systems, namely, band saws and electric butt welding machines; metalworking machines

Hand-operated plumbing snakes, pipe wrenches, rigid and rod hand benders for use on pipes and conduits, wire crimpers, wrenches and pliers

Thermostats and wireless remote temperature and humidity monitors for building maintenance; electrical apparatus and instruments, namely, electronic controls and switches for controlling indoor climate in commercial and residential buildings; software for the design and calculation of heating, ventilation, and air conditioning in buildings and water supply systems; software for the control of indoor climate in commercial and residential buildings

Underfloor and in wall mounted heating and cooling systems for residential and commercial buildings, composed primarily of tubes, pipes, heat meters, valves, environment controllers and manifolds through which water circulates, all sold as a unit; district heating systems for residential and commercial buildings, composed primarily of tubes, pipes, heat meters, valves, environment controllers and manifolds through which water circulates, all sold as a unit; dripper irrigation systems and sustainable onsite water recycling and wastewater treatment systems, composed primarily of pipes, tubes, sewer pipes, valves, filters and regulators; tap water supply and distribution systems in the nature of water purification installations, composed primarily of pipes, tubes, valves, filters and regulators; drainage systems in the nature of water conditioning units, composed primarily of pipes, tubes, sewer pipes, valves, filters and regulators; sewerage systems and sanitary piping in the nature of sewage purification installations composed primarily of tubes, pipes, valves, controllers and regulators; apparatus for heating and ventilating, namely, air-conditioning units, ceiling fans, electric fans, electric heating fans, electric fan heaters, fans for air-conditioning, ventilating fans for commercial and industrial use

Flexible tubes of plastic, not of metal; insulating material for pipes and under floor heating; rings of rubber for use as pipe connection seals; insulating material for pipes and floors; insulating materials, namely, insulating plates pressed together in semi-finished form, insulating tape for installing floor and heating element systems; flexible plastic pipes and plastic hoses for use in snow and ice removal systems; flexible pipes, not of metal

Non-metallic rigid pipes for building; non-metal sewer pipes for building purposes; non-metallic gutter pipes, ducts, rigid filtering tubes used to prevent storm water runoff pollutants from entering sewer systems and gutters; non-metal sewer pipes, namely, riser pipes for supervision; installation panels and sheets of plastic and wood for under floor heating, namely, floor panels and boards of composite materials, plastic and wood; rigid plastic pipes and tubes, namely, plastic water pipes; installation panels and sheets of plastic for under floor heating, namely, assembly panels and plates of plastic for floor heating, namely, floor panels not of metal

Installation, repair and maintenance of installations for sanitary installations and sanitation equipment; advisory services relating to the installation, service, maintenance and renovation of installations for sanitary installations and sanitation equipment; servicing and installation of drainage and irrigation systems, wastewater handling systems, wastewater treatment systems