Titanium; Castings, foils, powder, and rolled, drawn or extruded semi-finished articles of copper or its alloys; Copper wire, not insulated; Copper, unwrought or semi-wrought; Foils of metal for wrapping and packaging; Gutter pipes of metal; Hardware, namely, metal brackets for general use; Iron, unwrought or semi-wrought; Metal bolts; Metal cable trays used in building construction; Metal junctions for pipes; Metal nuts; Metal rails; Metal weatherboard; Metal welding rods; Poles of metal for...