6 Unwrought and partially wrought common metals and their alloys in the shape of coils, bars, profiles, billets, sections, sheets and strips, rails, rods, blooms, plates, beams, pipes and tubes; steel in the shape of sheets, strips, bars, profiles, sections, rods, blooms, coils, rails, billets, plates, beams, pipes and tubes; metallic building materials; namely, nails, screws, sheets, columns, beams, channels, and bars; metallic materials used for railways, namely, steel cross ties and non-electric cables and wires; and metal safes