Awọn ilana ti ṣiṣe irin alagbara, irin seamless paipu: 1, steelmaking → 2, sẹsẹ yika irin → 3, perforation (annealing) → 4, tutu fa → 5, tutu sẹsẹ (annealing, demagnetization, pickling, cleaning) → 6, odi polishing → 7, didan odi ita → 8, titẹ afẹfẹ ...
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