Graphite Petroleum Coke, Graphite Electrode Powder, Isostatic Pressing Graphite manufacturer / supplier in China, offering 85451100 UHP Large Graphite Electrode with Nipple Used for Arc Furnaces, Graphite Petroleum Coke GPC for Steel Factory Recarburizer, Silicon Carbide Black Sic 98% 90% 88% 85%1-5mm 1-10mm and so on.