Steel coil; metallic bar; metallic diaphragm; iron sheet and iron wire; reinforcing metal bar; steel wire; steel cable; steel rope; tin solder bar and tin solder wire; solder tin; tungsten filament; casting alloy; aluminum tube; aluminum bar; triangle iron; metallic foil; metallic powder; stainless steel sheet; galvanized iron sheet; cold-rolling steel bar; hot-rolling steel bar; universal angle steel