Alloys of common metal; Aluminium and its alloys; Bolts of metal; Collars of metal for fastening pipes; Common metals, unwrought or semi-wrought; Copper pipes; Copper wire, not insulated; Fittings of metal for furniture; Fittings of metal for pipes; Irons and steels; Mechanical fastening elements of metal; Stainless steels; Metal pipe clips; Metal poles; Numberplates of metal