Usoro nke ime igwe anaghị agba nchara ọkpọkọ: 1, steelmaking → 2, Rolling round steel → 3, perforation (annealing) → 4, cold drawn → 5, cold rolling (annealing, demagnetization, pickling, Clean) → 6, mgbidi polishing → 7, mpụta mgbidi polishing → 8, ikuku mgbali ...
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