6 Common metals and their alloys; building materials of metal, namely, reinforcing materials of metal for buildings; transportable buildings of metal; non-electric cables and wires of common metal; tubes of metal; metal parts, fittings and components for construction and assembly of vehicles and electric vehicles, namely, metal products parts, pieces and metal components for construction and assembly of cars, pegs, screws, clamps, and scaffolding; common metal for stamping; metal alloys for welding; metal welding bars; welding materials, namely, welding wire and metal welding rods; welding paste; pewter for welding; welding preparations, namely, metal for welding; hard, soft and silver solders; metal rods for welding