Buyer: Copper powder ultra fine, copper powder ultra fine, copper ingot, titanium nickel (ni), aluminum, tungsten, magnesium (mg), silicon, sulfur, potassium, calcium, titanium, vanadium, chromium, iron, nickel, copper, zinc, gallium, germanium, selenium, strontium, rubidium, molybdenum, zirconium, cadmium, indium, tin, tellurium, manganese ore, chromium ore, red brass scrap, yellow brass scrap, ship's propeller, gun metal, aluminum and bronze scrap , bronze propeller scrap ,ore , lumps, mineral