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.
specialty metals and alloys, namely, stainless steels, silicon electrical steels, tool steels, and nickel, cobalt, titanium, niobium, hafnium, zirconium, vanadium, and alloys thereof, in mill products forms, namely, ingots, billets, castings, forgings, bar, rods, wire, plates, sheets, strips, and foil