Ntụaka n'olu imecha
| Ngwucha olu | Ngwa a na-ahụkarị | Okpu / mgbapụta |
|---|---|---|
| Crimp (FEA 13/15) | Ịgba alụlụ ọma, isi ísì ụtọ | Ihe olu akwa crimped metal, kaa akara |
| Mkpọsa (18/20/24) | Enwere ike imegharị, ịgbapụta ma ọ bụ okpu mkpọ | Okpu mkpuchi, njuputa dị mfe |
| Obere / pụrụ iche | Ihe na-esi ísì ụtọ, nchọpụta na njem | Obere plọg na okpu |
Nye ngwụcha olu (nọmba FEA) ma anyị dabara okpu na mgbapụta ziri ezi. Ọ bụrụ na ị maghị, zitere anyị karama ntụaka ma anyị chọpụta na ọ dabara. Anyị mgbe niile validate akara na ịgba on a anụ sample tupu mmepụta.