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Charcoal is the prime material used in copper-allo...
1.
Charcoal is the prime material used in copper-alloy foundry.
A.
True
B.
False
Answer» B. False
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_____________ protects molten metal from atmosphere in the foundry?
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Charcoal is the prime material used in copper-alloy foundry.
The source of energy that keeps the furnace the cleanest is __________
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