Common metals and their alloys; building materials of metal, namely, panels; transportable buildings of metal; non-electric cables and wires of metal; ironmongery and small items of metal hardware, namely, nuts, bolts, pipe fittings, and washers; pipes of metal; buildings, transportable, of metal; monuments of non-precious metal; statues or figurines of common metal; swimming pools of metal; swimming pool enclosures of metal, namely, metal canopies; water pipe valves of metal for swimming pools