Common metals and their alloys, unwrought or semi-wrought; metal pipes and fittings therefor; non-electric cables and wires of common metals; solder wire; copper and its alloys; copper-base alloy ingots; copper ingots; semi-finished articles of unrefined copper, namely, ingots, cakes, billets, sheets and rods; castings, foils, powder, and rolled, drawn or extruded semi-finished articles of copper or its alloys; tombac, being metal alloy; brass alloys; brass, unwrought or semi-wrought; tubes of copper alloys; building materials of metal, namely, fascia, soffits, hinges of metal, handrails of metal, door knockers of metal, non-electric door closers of metal, and knobs of metal; construction materials of metal, namely, braces, shores, supports, wall tiles of metal, and fittings of metal for building, namely, fittings of metal for windows, fittings of metal for pipes, metal joinery fittings; materials of metal for railway construction; loading and unloading pallets of metal; metal traversers for handling loads, not being machine parts or machines; straps of metal for handling loads; metal hardware, namely, metal pulleys, springs and valves not being parts of machines; metal pipe couplings; metal flanges; metal hardware, namely, nuts, washers, nails, screws, bolts of metal, rivets, and pegs of metal; metal hardware, namely, screwnails of metal; metal security locks; metal rings for keys, namely, split rings of common metal for keys; metal keys for locks; metal padlocks; wire nets and gauzes; industrial packaging containers of metal; metal stoppers for industrial packaging containers; lids of metal; safe deposit boxes