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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.
valves of metal for fluids, steam and hot water circulation; metal pipes, metal pipework, metal pipe elbows, pipe junction sleeves of metal, metal pipe clips; metal shaped pieces and fittings for civil engineering, namely, for gas, water and waste water conduits laid underground; metal discharge pipe flaps, metal adapters, metal extension pieces, all the aforesaid goods of cast iron or steel, with or without an inner and outer protective coating in the form of enameling or a plastic coating
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7
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs.
metalworking machines for machining of pipes; foundry machines, casting machines and centrifugal casting apparatus
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11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
pipes for sanitary facilities; regulating and safety devices for supplying water, namely, valves, stoppers, and shutters; water purification units; cokeless cupola furnaces
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19
Building materials (non-metallic); non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings; monuments, not of metal.
pipes and pipelines of plastic; non-metal pipes
-
40
Treatment of materials
metal coating, namely, enameling of metal pieces and plastic coating of metal pieces; metal treating and customized casting