6
Water-pipe valves of metal; Manifolds of metal for pipelines; Screws of metal; Elbows of metal for pipes; Collars of metal for fastening pipes; Nuts of metal; Ducts of metal for ventilating and air-conditioning installations; Expansion joints of metal for pipelines and ducts; Metal expansion joints for floors and walls; Metal tubes and pipes; Junctions of metal for pipes, including those of steel alloys and titanium; Heating pipes of metal; Metal hose fittings; Valves of metal, other than parts of machines, including those of steel alloys and titanium; Metal hoses for plumbing use; Storage and inspection boxes of metal; Valves for zonal heating and cooling installations
7
Pressure valves [parts of machines]; Pressure reducers [parts of machines]; Clack valves [parts of machines]; Control valves for regulating the flow of gases and liquids (parts of machines); Pump control valves; Mechanical seals (parts of machines); Valves (parts of pumps)
9
Control panels [electricity]; Temperature indicators; Pressure indicators; Switchboxes [electricity]; Thermostats; Calorimeters; Cables, electric; Counters; Pressure gauges; Infrared remote controls; Electronic indicator boards; Level indicators; Thermostat controllers; Software for the accounting of energy consumption, in particular of heat, water, gas and electricity consumption; Valve operators [electric controls]; Climate control digital thermostats
11
Air-conditioning installations; Boiler pipes [tubes] for heating installations; Heating installations; Dampers [heating]; Safety accessories for water or gas apparatus and pipes; Water distribution installations; Fans [air-conditioning]; Taps for pipes and pipelines; Thermostatic valves [parts of heating installations]; Heat pumps; Regulating accessories for water or gas apparatus and pipes; Air purifying units; Air filters for air conditioning units; Radiator valves [thermostatic]; Dosing valves (parts of heating or gas installations); waste pipes for sanitary installations; Dehumidifiers; Automatic temperature regulators (thermostatic valves) for central heating radiators; Air conditioning units; Water filters; Flexible tubes being parts for bath plumbing installations; Air conditioning installations and apparatus; Air filters for industrial use; Valves for hot water and heating plumbing installations; Air-vent valves; Taps and fittings for heating; Valves for heating units; Components for radiant heating and cooling systems; Heat exchangers, other than parts of machines
17
Pipe muffs, not of metal; Junctions, not of metal, for pipes; Water-tight rings; Non-metallic couplings for rigid pipes, Fittings, not of metal, for rigid pipes; Flexible hoses, not of metal; Waterproof packings; Insulating materials for pipes; Fittings [non-metallic] for flexible pipes; Sealed water-tight rings for hydraulic tubes; Elbows, not of metal, for pipes; Non-metallic tubing couplings; Multi-layer flexible hoses; Clack valves of rubber
20
Clips, not of metal, for cables and pipes; Water-pipe valves of plastic; Storage and inspection boxes not of metal