The cast iron when heated to red heat with powdered red haemetite in an oven for increasing its toughness, is

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Question:
The cast iron when heated to red heat with powdered red haemetite in an oven for increasing its toughness, is

1.grey cast iron

2. mottled cast iron

3. toughed cast iron

4.white cast iron

Posted Date:-2022-09-24 03:48:55

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