What are graphite electrodes and needle coke
Factbox: What are graphite electrodes and needle coke Sep 21, 2017· Needle coke is the main raw material used in the electrodes that producers say can take up to six months to make with processes including baking and rebaking to convert the coke into graphite. 作者: Reuters Editorial FACTBOX-What are graphite electrodes and needle coke Sep … Read more