Graphite Petroleum Coke (GPC) Zofunika:FC: 99 % min S: 0.05max Phulusa: 0.5 % max VM: 0.5% max Chinyezi: 0.5% max Kukula: 0.5-3mm; 1-5mm, 3-8mm, 8-30mm, 0-30mm Kupaka: Zikwama za Jumbo (Malinga ndi zomwe makasitomala amafuna, titha kupereka mawonekedwe ndi kukula kwake.)