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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 items of metal hardware; pipes and tubes of metal; safes; goods of common metal not included in other classes; ores.
metal pipe fittings for copper pipes, pvc pipes, pex tubing and stainless steel tubing, and metal structural parts therefor
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11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
plumbing fittings, namely, valves, couplers, reducers, plumbing t-pipe fittings being couplers or valves, plastic plumbing pipe fitting end retaining caps, insert sleeves, threaded end fittings and soldered end fittings
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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, stopping and insulating materials; flexible pipes, not of metal.
plastic inserts for use with metal pipe fittings and plumbing fittings, namely, pipe gaskets, o-ring pipe seals, packing glands for sealing pipes; plastic pipe fitting end retaining caps; kits composed of pipe fittings consisting of pipe gaskets, o-ring pipe seals, packing glands for sealing pipes, pipe fitting end retaining caps and removal tools for removing pipe inserts from pipe fittings