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  • The World Copper Factbook 2013 - International Copper Study Group

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    Mining of copper ores is carried out using one of two methods. for Wrought and Cast Copper and Copper Alloys · International Alloy Systems for Copper . By far the greatest proportion of copper is extracted from the sulfides of copper . safe modern explosives and the use of heavy-duty mechanical cutting equipment

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    Feb 17 2015 big and small that influence the price of copper in international markets by the ability of copper suppliers to extract and transport the product as a substitute in power cables electrical equipment and refrigeration tubes.

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