Perfect moulds can be made by using wrought iron but not by using molten copper. Give reasons.
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My take on this, probably because copper has a lower melting temperature than wrought iron, by choosing iron casts, you can repeat the casting process using the same cast, without loosing the original shape of the cast itself.
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it is because copper has lower melting temperature than wrought iron by choosing the iron cast you can repeat the casting process using the same cast without losing the original shape of the the cast itself.
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