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applications of room and pillar underground mining method in indonesia

applications of room and pillar underground mining method in indonesia

Roomandpillar mining generally is limited to depths of about 1000 feet because at greater depths larger pillars are needed resulting in smaller coal recovery typically 60 of the coal in the affected area The “continuous” version of roomand pillar mining is the most common representing more than half of all underground production... 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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