1[Efficient And Prevent Corrosion] Graphite ingot mold has premium thermal stability, can be heated and cooled quickly, resistant to strong acid and alkali corrosion. 2[High Performance] Graphite ingot mold for gold and silver and other precious metals melting, premium thermal shock resistance, electrical conductivity as well as thermal conductivity. 3[Stable And Durable] Rectangular graphite ingot mold is wear resistant, with strong lubricating properties, long service life, high purity and density, high mechanical strength, and chemical stability. 4[Application] Made of pure graphite to ensure that precious metals in smelting are not contaminated, graphite casting crucible designed for melting gold, silver, copper, brass, aluminum, etc. 5[Multifunctional] Graphite crucible mold can be used for melting metals, also can be used to make bars, or necklace pendant ornaments for testing and analysis tools.