Semi Graphite Petroleum Coke da aka yi amfani da shi don simintin ƙarfe na ductile

Takaitaccen Bayani:

Masana'antar Aikace-aikace
An yi amfani da shi sosai a cikin ayyukan narkewar ƙarfe, ƙayyadaddun simintin gyare-gyare a matsayin masu tayar da carbon