Ngwa:
► A na-ejikarị arụ ọrụ nchara nchara, nkedo ziri ezi dị ka ndị na-ebuli carbon;
►eji na ntọala ntọala dị ka onye na-agbanwe agbanwe iji mụbaa ọnụọgụ speroidal graphite ma ọ bụ melite nhazi nke nkedo isi awọ si otú a kwalite klas nke nkedo isi awọ;
► onye na-ebelata ihe na-ebelata n'ime ụlọ ọrụ kemịkalụ;
► ihe mgbagharị, wdg.
Mmepụta mkpụrụ osisi graphite petroleum kwa afọ nke ZhenAn bụ tọn 30,000. Na pụrụ iche urughuru size dị maka gị chọrọ.
| Ụdị | F.C min | S max | Vol max | Ash max | N max | Ihe ọjọọ kacha |
| GPC-01 | 99% | 0.03% | 0.5% | 0.5% | 100pm | 0.5% |
| GPC-02 | 98.5% | 0.05% | 0.7% | 0.8% | 200ppm | 0.5% |
| GPC-03 | 98% | 0.05% | 1% | 1% | 300ppm | 0.5% |
| Nha | 1-15mm ma ọ bụ ahaziri. | |||||