Calcium Carbide, Graphite Electrode, Cac2 manufacturer / supplier in China, offering Steel Metallurgy Carbon Additive Graphitized Petroleum Coke High Absorption Rate Enhances Casting Density, Graphitized Petroleum Coke Comes with a Quality Inspection Report and Has Stable Quality., Graphitized Petroleum Coke. Customization Available. Processing Can Be Done According to Your Requirements. and so on.