Graphite Crucible, Graphite Block, Graphite Mold manufacturer / supplier in China, offering High-Temperature Silicon Carbide Graphite Crucible for Electric Torch Smelting, 100kg 200kg 300kg 500kg Silicon Carbide Graphite Crucible for Aluminum Copper Gold Platinum Casting / Refining, Cylindrical Black Graphite Metal Melting Tools Silicon Carbide Graphite Crucible and so on.