6
Common metals and their alloys; metal building materials; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small separate items of metal hardware; pipes and tubes of metal; safes; goods of common metal not included in other classes; ores, ducts and pipes for central heating installations, drain pipes, valves, ducts and pipes for air-conditioning installations, fittings included in this class, pipes for fluid distribution, included in this class, piping for fluid distribution, included in this class, pipes and fittings for air-conditioning, water supply and fluid distribution apparatus and installations, water supply, heating and gas valves, included in this class
11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, filters (parts of household or industrial installations) for fluid distribution, water filters, filters for drinking water, distillation apparatus, safety accessories for water and gas apparatus, pipes and installations, bidets, boilers, radiators, central heating radiators, water distribution installations, water-filtering apparatus, aquarium filtration apparatus, fountains, apparatus, pipes and installations for heating and cooking liquids, heating elements, radiators, fittings for heating elements, fittings for radiators, hydrants, saunas, bath cabinets, shower cubicles, chimney flues, flues for heating boilers, bath fittings, hot air bath fittings, desalination plants, apparatus for heating included in this class, installations and apparatus for heating and warming water, pipes for fluid distribution being parts of water, central heating, gas and sanitary installations, fittings included in this class, regulating accessories included in this class, water and gas installations, pipes and valves, apparatus for water extraction, gaskets and spare parts for water, central heating, gas and sanitary installations, apparatus for creating whirlpools in fluids, cooling installations for liquids, water supply installations, water sterilisers, pressure water tanks, ornamental fountains
17
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing materials, sealing materials, tow, insulating materials; Flexible pipes, not of metal, fluid and compressed air pipe and installation fittings, not of metal, pipes for fluid distribution, included in this class, flexible tubes, not of metal, watertight rings, waterproof packings