Steel; Wire; Arbours of metal used as structures; Copper, unwrought or semi-wrought; Iron, unwrought or semi-wrought; Metal fasteners, namely, bolts, nails, rivets, screws; Metal pipes and tubes; Metal shims; Nuts of metal; Pipes of metal including those from alloy steel and titanium; Stainless steel; Steel alloys; Steel in sheet, rod, bar and/or billet form; Wire of common metal