Alloys of common metal; Barbed wire; Bicycle parking installations of metal; Carbon steels; Cast iron; Common metals and their alloys; Handrails of metal; Joists of iron or steel; Metal decking; Pilings of metal; Pre-fabricated metal houses for pigs, dogs and chickens; Stainless steel; Steel; Steels in the form of sheets, plates, foils and reels; Structural joint connectors of metal; Tubes of metal