Tantalum, niobium.
Ferro-silicon, Tantalum, Niobium.
Industrial minerals, graphite electrodes, graphite specialties, ferroalloys, primary aluminium, chrome ore, tantalite ore, antimony ore, sulfur, barite, calcium carbonate.Trading, sales agent, purchasing agent
Copper powder ultra fine, copper powder ultra fine (bronze gold powder), copper ingot, titanium nickel (ni), gold, 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, rare earths..
