6 Common metals and their alloys; metal building materials, namely, transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery and small items of metal hardware, namely, bolts, nails, screws, wall anchors, and rivets; metal door hardware, namely, cylinder deadlocks, deadbolts, dead latches; metal door hardware, namely, handle sets comprising door handles and knobs, lock cylinders, door strikes, door knob rosettes, thumb pieces for door handles, keys and turn buttons, key blanks, knobs, latches, levers, locks; metal door hardware, namely, lock sets comprising levers and knobs, lock cylinders, door strikes, and door knob rosettes; pipes and tubes of metal; metal safes; cobalt, iron, copper, nickel, tin and zinc ores; socket head cap screws made of metal; metal screws, namely, self-drilling, self-tapping, threaded and wood screws