Coke mmanụ ala a na-akpọ Calcined petroleum na-enwekarị nnukwu carbon dị site na 98% ruo 99.5%. Oke carbon a dị elu na-eme ka arụmọrụ dị mma na ngwa ndị metụtara carbon, dịka mmepụta anode na imepụta ígwè.
