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how is coal mining done

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how is coal mining done

May 04 2020 · Let us tell you that when the coal is buried less than 200 feet underground surface mining is done In this type of mining giant machines remove ... 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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