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the process of excavating and refining gold in brunei

The definition of ore and waste rock depends on the cutoff grade If the cutoff grade is one gram per tonne 10gt all rock with more than 10gt of gold will be marked out as ore while all rock which contains less than 10gt of gold will be marked out as waste rock The cutoff grade can be as low as 075gt...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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