High density, Corrosion resistance, High temperature, heat and fast, High thermal shock resistance, Attractive appearance. Melting various metal like gold, silver, copper, aluminum, lead, zinc,brass and other nonferrous metals. Features : Graphite crucible is generally used in alloy steel smelting and smelting of nonferrous metals and their alloys. Using Tips: Store in dry place, do not get it wet. After drying the crucible, don't make it touch with water. Be careful not to give a mechanical impact force, not from a fall or impact