Graphite Petrole Coke Kubyuma Byuma Byuma

Kokiya ya peteroli isukuye cyane ikozwe muri kokiya ya peteroli nziza cyane ku bushyuhe bwa 2500-3500 ℃. Nibikoresho bya karubone bifite isuku nyinshi, bifite karubone nyinshi ihamye, sulfure nkeya, ivu rike, ububobere buke nibindi biranga. Irashobora gukoreshwa nka carburizer (ibiyobyabwenge bya karubone) kugirango ikore ibyuma byujuje ubuziranenge, ibyuma bikozwe hamwe na alloys. Irashobora kandi gukoreshwa nk'inyongera muri plastiki na reberi.