Quartz crucible is available at 1450 degrees using two kinds of sub-transparent and opaque. Translucent quartz crucible arc legal system is drawn large diameter silicon, an essential foundation for the development of LSI material. Today, the world's semiconductor industry in developed countries has been replaced by this crucible small transparent quartz crucible. He has high purity, temperature resistance, high precision large size, good insulation, energy-saving, stable quality and other advantages.