Zvinonyanya kutsanangurwa nezve graphite petroleum coke ndeizvi: hunyoro huri pasi pe 0.5%, sarufa iri pasi pe 0.05%, phosphorus iri pakati pe 0.04-0.01, hydrogen nitrogen iri pasi pe 100%ppm. Hunhu hwakawanda hwekabhoni huri pakati nepakati, porosity ichave yakakura, kumhanya kwekunyudzwa kunokurumidza, uye kuumbwa kwayo kwemakemikari kwakachena, mwero wekunyudzwa uchava wakakwira. Hukuru hwezvikamu 0-5mm, 1-5mm, 0-10mm, nezvimwewo, zvinogona kugadziriswa zvichienderana nezvinodiwa nevatengi.
