Common metals and their alloys; decorative objects in the nature of spheres, centerpieces, and decorative artwork made of common metal; decorative objects in the nature of spheres, centerpieces, and decorative artwork made of non-precious metal; hardware pins of common metal or their alloys; reinforcing materials of metal for building; ring-shaped fittings of metal; sculptures and trophies of common metal or their alloys; semi-processed metal ores; signs, non-luminous and non-mechanical, of m...