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E-iko gbakọtara na-efe efe maka igbutu
1. Akụkụ silane-dabeere site na sizing, dakọtara na elu na ve, na-ebugharị ebe obibi dị elu na ezigbo mkpụrụ,
2.final Companity Ngwaahịa na-ebubata nguzogide mmiri kachasị elu na kemịkarọ nke ọma.
3.Yanically eji emepụta ọkpọkọ.
