Igbe-ụdị iguzogide ọkụ e mere maka chemical mmewere analysis, na obere iberibe ígwè hardening, annealing, tempering, na ndị ọzọ elu okpomọkụ okpomọkụ ọgwụgwọ na laboratories nke ulo oru na Ngwuputa Enterprises, mahadum, nnyocha institutes;nwekwara ike ị...
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