Branching pipes, not of metal; Polyethylene pipe used in geothermal heating and cooling systems; Non-metallic drainage pipes; Non-metal building flashing; Non-metal water pipes; Building materials, namely, plastic pipe supports; Rigid pipes of polypropylene for the supply of drinking water and heating and air conditioning systems in houses, office buildings and industrial buildings; Building materials, namely, composite panels composed primarily of nonmetal materials; Non-metal windows and do...

Taps for washstands; Shower head sprayers; Water purifying apparatus for household purposes; Floor heating apparatus; Water control valves for faucets; Manually-operated plumbing valves; Plumbing fittings, namely, couplers; Valves as part of radiators; Hot water heating installations; Electric towel warmers

Metal hoses for plumbing use; Water-pipe valves of metal; Copper pipes; Ducts of metal, for central heating installations; Water-pipes of metal; Connectors of metal for pipes; Metal fittings for pipes; Metal penstock pipes; Valves of metal other than parts of machines including those from alloy steel and titanium; Stainless steel pipes