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Why wet than premium copper prices of copper, water copper levels cheap?

Answers:1   |   LastAnswerAt:2011.06  

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jenny brown 
Asked at 2011.06.07 01:28:19
Why wet than premium copper prices of copper, water copper levels cheap?
answer Abraham Ford  Answered at 2011.06.07 01:28:19
Smelting method is not as wet copper smelting method is simple, cost is very low, the fire method for copper smelting complex and relatively high cost, and high purity copper than the wet, good surface finish Ye Yao, refined and complete, containing few impurities
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