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 goods used exclusively for buildings and construction, namely, metal panels, partitions, blinds and doors made of steel, stainless steel and aluminum
19
Building materials (non-metallic); non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings; monuments, not of metal.
non-metal goods used exclusively for buildings and construction, namely, non-metal panels, wall boards, floor boards, roof sheathing, ceilings, road pavement boards, plywood, windows, blinds, doors, partitions, wall tiles and floor tiles made of ceramic, linoleum, plastic, rubber, gypsum, concrete, wood, cork, stone, artificial stone, asphalt, calcium silicate, cement mortal, asbestos cement, glass, paper, and smoothly planed boards