6 Common metals, namely unwrought and semi-wrought common metals, and their alloys; scrap metal, namely iron, steel, copper, aluminum, brass, zinc, unwrought or semi-wrought lead, tin; nuts, bolts, armor-plating of metal for building, metal pipes and metal fittings therefor, all-purpose metal straps, railway sleepers of metal, portable metal levees, metal hardware, namely, washers of metal, metal springs, pulleys of metal, sleeves of metal, and metal hooks, metal containers for the storage and transportation of goods, non-electric cables and wires of common metal, portable metal free-standing barriers, common metal drawer pulls, paint spray booths of metal, awnings of metal, metal canopies, metal door hardware, namely, keys and key cylinders