I-graphite petroleum coke isetshenziswa kabanzi embonini. Isetshenziswa njenge-ejenti ye-carburizing ekusetshenzisweni kwensimbi, ekubunjweni nasekubunjweni ngokunemba. Isetshenziselwa ukwenza i-crucible yokushisa okuphezulu yokuncibilikisa, i-lubricant yemboni yemishini, nokwenzai-electrode kanye ne-lead yepensela; Isetshenziswa kabanzi embonini ye-metallurgical yezinga eliphezulu lokungaguquguquki kanye nokugqoka, i-stabilizer yezinto zomlilo zezimboni zamasosha, i-lead yepensela yomkhakha wokukhanya, ibhulashi lekhabhoni yomkhakha kagesi, i-electrode yomkhakha webhethri, i-catalyst yomkhakha womanyolo wamakhemikhali, njll.