Answers

2015-08-27T16:04:04+05:30
the technique or science of working or heating metals so as to give them certain desired shapes or properties
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2015-08-28T19:26:23+05:30
The process of extraction of metal from is called as metallurgy. ..
the key terms in metallurgy are dressing or extraction of ore
reduction
refining ot purification
Roasting, calcination,
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