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A. is obtained by purifying pig iron B. is manufactured in required shapes C. may contain 2 to 5 per cent of carbon with other impurities D. is remelted in a cupola furnace |
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A. is obtained by purifying pig iron B. is manufactured in required shapes C. may contain 2 to 5 per cent of carbon with other impurities D. is remelted in a cupola furnace |
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