Coke man fetur da aka zayyana shi ne ya maida coke na man fetur zuwa wani sinadari mai kauri mai kauri mai kauri mai kauri da kiristanci a wani babban zafin jiki na kusan digiri 3000 a cikin tanderun da ake sarrafa hoto, wato, man coke ya zama graphite. Ana kiran wannan tsari graphitization. Coke man fetur da aka sarrafa ta hanyar graphitization ana kiransa graphitized petroleum coke.
