Uru:
Nhazi a na-ebute nguzogide dị elu na ujo okpomọkụ, mbuze, nguzogide oxidation na ogologo ọrụ.
Ha na-egosipụta atụmatụ nke ezigbo nguzogide ujo ọkụ, arụmọrụ kwụsiri ike, nrụrụ dị mma na nguzogide mbuze, yana nguzogide mgbawa siri ike.| Ihe ngosi | N'elu ma na-anakọta nozzle | ||
| ZA70 | ZA75 | ZA80 | |
| Al2O3≥ | 70 | 75 | 80 |
| C ≥ | 3 | 3 | 3 |
| Nnukwu njupụta (g/cm3) ≥ | 2.7 | 2.85 | 2.85 |
| Obere porosity pụtara ≤ | 10 | 10 | 10 |