Calcined Petroleum Coke, Graphite Petroleum Coke, Graphite Block manufacturer / supplier in China, offering Prebaked Carbon Anode Block/Anode Blocks as Carbon for Aluminium and The Main Raw Material for Electrolytic Aluminum, Carbon Electrode for Produce Metals and Non-Metals Such as Silicon, Yellow Phosphorus and Ferroalloys, High Quality Semi Coke with The Lowest Price in China as a Substitute for Coke and so on.