6 Common metals and their alloys; metal building materials, namely, metal cables, electric and guy wires, pipes, tubes, HVAC ducts and ducting for electric cables, storage tanks, gutters, pipe collars, water-pipe valves, and cable clips; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small items of metal hardware, namely, metal brackets for general use; pipes and tubes of metal; safes; goods of common metal, namely, metal storage tanks, metal fluid storage tanks, rainwater tanks of metal for household use, for automotive and industrial use, industrial water tanks of metal, metal oil cans sold empty, oil drainage containers of metal, reinforcing materials of metal for pipes, reinforcing materials of metal for machine belts, metal reinforcement materials for building, reinforcing materials of metal for building, junctions of metal for pipes, gutter pipes of metal, elbows of metal for pipes, drain pipes of metal, penstock pipes of metal, pipe muffs of metal, pipes of metal, collars of metal for fastening pipes, water-pipe valves of metal, clips of metal for cables and pipes, ducts and pipes of metal for central heating installations, boxes of common metal, tool boxes of metal, empty, ducts and pipes of metal for central heating installations, ducts of metal for ventilating and air-conditioning installations, reinforcing materials of metal for pipes, reinforcing materials of metal for machine belts