1-5mm Semi Graphite Petroleum Coke oo laga sameeyay warshadda birta
Semi GPC (SGPC) waxay ka timid lakabka dahaarka ee foornada acheson. Heerkulka garaafka wuxuu u dhexeeyaa 1700-2500ºC. Waxay ka tirsan tahay badeecada garaafka heerkulka themedium. Waa dib-u-habayn dhaqaaleed oo leh kaarboon go'an oo sarreeya, ka kooban sulfur hoose, heerka kala dirida degdega ah iyo heerka nuugista sare.








