1. Mfe na-ejiri mgbawa mwepụ
2. Akwa mkpuchi mkpuchi & ogologo ndụ
3. TiCN kacha sie ike na mkpuchi ihe mejupụtara Al2O3
4. R & D na mmepụta ikike na-aga n'ihu na ahịa na-emekarị
5. Nkwado teknụzụ iji dozie ngwọta nhazi maka ndị ahịa n'akụkụ niile
6. Ngwaahịa zuru oke iji hụ na nnyefe ngwa ngwa
| Ụdị | S | Ød | r |
| VNMG160404 | 4.76 | 3.81 | 0.4 |
| VNMG160408 | 4.76 | 3.81 | 0.8 |
| VNMG1604012 | 4.76 | 3.81 | 1.2 |