Metal crucibles have good thermal conductivity, which can greatly shorten melting time and save energy. Metal crucibles have good thermal stability and are suitable for use in emergency situations or low-temperature conditions. Excellent resistance, impact resistance, acid resistance, and alkalis resistance. It can melt metals such as gold, silver, and other alloys, with a long service life. It maintains various physical and chemicals properties of its original natural Metal., Manufacturer: Kalttoy