Malleable cast iron is produced1. By quick cooling of cast iron.2. By adding magnesium to molten cast iron.3. from white cost iron by annealing.Which of the above statements is/are correct?

Malleable cast iron is produced1. By quick cooling of cast iron.2. By

1.	Malleable cast iron is produced1. By quick cooling of cast iron.2. By adding magnesium to molten cast iron.3. from white cost iron by annealing.Which of the above statements is/are correct?
A.	1 only
B.	2 only
C.	3 only
D.	1, 2 and 3
Answer» D. 1, 2 and 3

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Malleable cast iron is produced1. By quick cooling of cast iron.2. By adding magnesium to molten cast iron.3. from white cost iron by annealing.Which of the above statements is/are correct?

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