Common metals and their alloys, unwrought or semi-wrought; Fittings of metal for furniture; Furniture casters of metal; Grease nipples; Mechanical fastening elements of metal; Metal drill pipes for use in well boring; Metal fasteners, namely, bolts, nails, rivets, screws; Metal pipes and metal fittings therefor; Metal profiles made of steel, iron, nickel, titanium and other metals and their alloys; Metal rails; Metal scaffolding; Rods of metal for brazing and welding; Stainless steel; Structu...