Yakakwira-kuchena graphitized petroleum coke inogadzirwa kubva pamhando yepamusoro petroleum coke pasi petembiricha ye2,500-3,500 ℃. Seyakanyanya-kuchena kabhoni zvinhu, ine maitiro emhando yepamusoro yakagadziriswa kabhoni, yakaderera sarufa, yakaderera madota, yakaderera porosity etc.Inogona kushandiswa secarbon raiser (Recarburizer) kugadzira simbi yemhando yepamusoro, simbi yakakandwa uye alloy.Inogona zvakare kushandiswa mupurasitiki uye rabha sekuwedzera.
