Graphite Crucible, Graphite Block, Graphite Mold manufacturer / supplier in China, offering High-Temperature Graphite Mold for Metal Ingot Casting, 1kg 2kg 3kg Good Thermal Conductivity Double Rings 99.99% High Pure Graphite Crucible for Gold Silver Platinum Smelting for Muffle Furnace Jewelry Casting Tools, High Temperature Resistance Graphite Sagger as a Vessel Used for Graphitization of The Negative Material and so on.