6 Common metals and their alloys including stainless steel; Iron strip; Metal strapping or tie downs; Steel wire; Bars for metal railings; Cables of metal, non-electric; Castings, foils, powder, and rolled, drawn or extruded semi-finished articles of aluminium or its alloys; Castings, foils, powder, and rolled, drawn or extruded semi-finished articles of copper or its alloys; Fittings of metal for furniture; Pipes of metal