Calcium Carbide, Graphite Electrode, Cac2 manufacturer / supplier in China, offering Low Ash Content for Calcined Petroleum Coke Casting, High Cost Performance, High-Purity and Stable Supply of Graphite Electrodes for Calcined Petroleum Coke, High-Density Calcined Petroleum Coke Anti-Wear Type Anti-Pulverization Additive for Lithium Battery Anodes and so on.