恨铁不成钢 Turn iron into steel

百炼成钢 Tempered into a steel ; nbe tempered into a steel ; be tempered into steel

速成钢胶棒 FASTSTEEL

恨女不成钢 I Hate My Teenage Daughter

许成钢 Chenggang Xu

速成钢 FastSteel

吴成钢 Cheng-Gang Wu

用于形成钢管的扁钢卷 Skelp

成品钢 [材] Finished Steel

成卷带钢 Coiled Steel ; coiled d steel