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abụọ n'akụkụ weld anya osisi ịghasa
Ndị na-emepụta ozugbo na-enye ụzọ ịgbado ọkụ okpukpu abụọ n'akụkụ osisi ezé atụrụ anya mgbanaka kposara, akụkụ abụọ nke ịgbado ọkụ osisi eri atụrụ anya mgbanaka kposara ntụpọ, akụkụ abụọ agbado ọkụ osisi eri atụrụ anya okirikiri kposara agba zinc. Eriri osisi anya mgbanaka skru