The material is fine structure graphite, high purity graphite, graphite crusher which makes for the primary data, mainly used in the platinum gold, the gold and other alloy melting.  Properties: Carbon content: 99.9% min. Ash Content: 0.02% max.  The strength is high; the anti-hot is strong; the dissolve temperature can reach to 1800 celsius; the anti-oxidizes is strong; the electric resistance rate is low; the corrosion is bear.