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ore mining methods pdf book 362

Jan 01 2012 · The metallicnonmetallic sector has an annual production of about 56 billion tonnes of ore and about 144 billion tonnes of waste Over 80 of the metallicnonmetallic sector ore production and 50 of the coal production are by surface mining methods Over 80 of all materials handled in the mining industry is by surface methods...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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