1. Ifihan ohun elo irin alagbara, irin alagbara, irin ti o jẹ iru awọn ohun elo irin ti o ni ipata, ti o jẹ ti irin, chromium, nickel ati awọn eroja miiran, pẹlu awọn ohun-ini ẹrọ ti o dara, toughness, plasticity and corrosion resistance.Fil oxide chromium...
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