N'oge na-adịbeghị anya, ụlọ ọrụ anyị ejirila nke ọma mepụta ụdị ọhụrụ nke ọkpọkọ ígwè na-enweghị ike.Ngwaahịa a nwere njirimara nke ike dị elu, nguzogide corrosion na nguzogide okpomọkụ dị elu, a pụkwara iji ya mee ihe na petrochemical, ike eletrik, aerospa ...
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