Mmemme Nleba Ọdịmma Steel Pipe
Nchọpụta akụkụ, Nyocha ihe mejupụtara kemịkalụ, Nnwale na-adịghị emebi emebi, Nnwale arụmọrụ anụ ahụ na nke kemịkal, nyocha metalographic, Nnwale usoro.
Na-atụ dayameta mpụta
Ntụle ogologo
Ntụle ịdị arọ



