Calcium Carbide, Graphite Electrode, Cac2 manufacturer / supplier in China, offering Crystallization of Petroleum Coke Particles Various Specifications Available in Stock Preferred for Aluminum Anodes / Carbon Booster, High-Carbon Calcined Petroleum Coke Special Carbon Booster for Casting / Steelmaking / Electrolytic Aluminum Production, High Absorption Rate Graphitized Petroleum Coke High Carbon Addition Efficiency Reduces Raw Material Consumption and so on.