carbon raiser is high degree of graphitezation, stable chemical composition, fewer impurities, quite fewer Fe and S carbon raiser is high degree of graphitezation, stable chemical composition, fewer impurities, quite fewer Fe and SF.C. 70~88Moi. 2maxV.M. 4maxAsh. 16maxSize. 1~3mm, 0~5mm, 0~3mm, 1~5mm carbon raiser