Common metals and their alloys; metal building materials, namely, floor panels and ceiling boards; transportable buildings of metal; materials of metal for railway tracks, namely, metal rails and tracks for rail vehicles; non-electric cables and wires of common metal; ironmongery and small items of metal hardware, namely, washers, nuts, bolts and screws; pipes and tubes of metal; safes; goods of common metal, namely, metal hardware in the nature of washers, nuts, bolts and screws; metal ores