Alloyed steels; Alloys of common metal; Alloys used for casting; Aluminum alloy; Aluminum alloys; Cast iron, unwrought or semi-wrought; Common metals and their alloys including stainless steel; Fasteners, namely, metal bars and chains; Iron and steel for use as raw materials for automobile parts; Metal fasteners, namely, bolts, nails, rivets and screws; Metal gas springs for opening and closing doors in automotive and aviation manufacturing; Metal hardware, namely, nuts; Metal hexagon head bo...