graphite carbon additive stable quality carburizer for special steel and ductile iron high carbon, low sulphur graphite carbon additive stable qualityused as carburizer for special steel and ductile ironhigh carbon, low sulphurquick delivery Carbon AdditiveGraphitized Petroleum CokeArtificial Graphite ScrapeCarburizerF.C (Min)99%98.5%98%S (Max)0.05%0.05%0.05%ASH (Max)0.5%0.80%1%V.M(Max)0.5%0.70%1 ...