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is primary copper ore grade lower than byproduct in australia

is primary copper ore grade lower than byproduct in australia

May 24 2019 · The average grade of copper ores in the 21st century is below 06 percent copper with the proportion of ore minerals being less than 2 percent of the total volume of the ore rock... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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