Graphite Petroleum Coke (GPC) Nkọwa: FC: 99% min S: 0.05max Ash: 0.5% max VM: 0.5% max mmiri: 0.5% max Nha: 0.5-3mm; 1-5mm, 3-8mm, 8-30mm, 0-30mm Nkwakọ ngwaahịa: akpa Jumbo (Dịka ndị ahịa chọrọ, anyị nwere ike ịnye nkọwa na nha dị iche iche.)