Calcined Petroleum Coke, Graphite Electrode, Graphite Petroleum Coke manufacturer / supplier in China, offering UHP/HP/RP Graphite Electrode with Nipple for Lf or Eaf, Dia 350mm Graphite Electrode with Nipple for Lf or Eaf, UHP/HP/RP Graphite Electrode with Nipple for Lf and Eaf and so on.