6 Common metals and their alloys, unwrought or semi-wrought; unwrought or semi-wrought steel, stainless steel, carbon steel, coated steel, coated quenched steel, chromium steel, galvanized steel, electro-galvanized steel, pre-lacquered steel, colored steel, aluminum-coated steel, grain oriented silicon steel; unwrought or semi-wrought cast iron; iron scraps; iron, unwrought or semi-wrought, namely, tinplate, iron for direct reduction and directly reduced iron; metal ores, including crude or processed ores; metal building materials, namely, pipes and tubes of metal, reinforcing materials of metal for building, floors of metal, floor tiles of metal, partitions of metal, metal building materials in the nature of structures and covers of metal, namely, door frames of metal, greenhouse frames of metal, window frames of metal, steel frames for building, metal building materials in the nature of multi-layered panels of metal, namely, composite boards of metal, floor panels of metal, ceiling panels of metal and fence panels of metal, linings of metal, linings of metal for building; laminated or sectional building materials of metal in the nature of heavy sections, namely, girders of metal, steel sections in the nature of partitions, joists, sheet piles and beams; reinforcing materials, of metal, for concrete; multi-layered wall panels of metal; covers of metal for building, namely, metal vent covers for HVAC ducts; transportable metal constructions, namely, metal shelters and parts of shelters; materials of metal for railway tracks, namely, rails and component parts thereof, metal tracks for rail vehicles such as rails, rail splice bars; non-electric metal wires and cables, namely, wire rods, soldering wire of metal and barbed wire; metal tubes and pipes; metal gates and fences, metal gratings, metal fireplace grates and metal window screens; wire in the nature of metal wire driving, metal bolts and nails; multi-layered building materials of metal not included in other classes, namely, multi-layered sheet metal, sandwich panels in the nature of composite panels and plates of metal in the nature of clad steel plates; armor plating; ferrules of metal for canes and walking sticks; window frames of metal for building; metal tanks and containers, namely, metal tanks for storing liquids, metal water tanks for household purposes, metal containers for transport and metal storage containers for general use; screw rings and sealing caps of metal; billets of metal, clad steel plates, foils of metal, reels of metal in the nature of spring-retracted metal hose reels, metal hand-operated electrical holiday light storage reels and metal storage reels for electrical lights, metal latch bars, girders of metal, strips of metal in the nature of iron strips and metal binding strips used on packaging, steel rods, metal tubes, wires of metal, non-electric cables of metal, common metal ingots and forged stainless steel ingots; iron slabs; door and window frames of metal