Graphite Petroleum Coke Don Kafa Simintin Ƙarfe Grey
Babban tsaftataccen graphitized man coke an yi shi ne daga coke mai inganci mai inganci a zazzabi na 2500-3500 ℃. Yana da wani high-tsarki carbon abu, tare da high kafaffen carbon abun ciki, low sulfur, low ash, low porosity da sauran halaye. Ana iya amfani da shi azaman carburizer (carbon jaraba) don samar da ingantaccen ƙarfe, simintin ƙarfe da gami. Hakanan ana iya amfani dashi azaman ƙari a cikin robobi da roba.