Graphite Powder, Silicon Carbide, Recarburizer manufacturer / supplier in China, offering High Carbon Low Sulphur Low Ash Calcined Petroleum Coke CPC 98.5% 0-7mm 0-6mm Carbon Additive for Aluminum Industry, Sulfur Content 0.5%Max Calcined Petroleum Coke CPC with Fixed Carbon98.5% Used for Brake Pad, High Purity Calcined Petroleum Coke CPC 98.5% 40-60mesh 60-80mesh Used in Manufacturing Brake Pads and so on.