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coal mining methodsppt

coal mining methodsppt

Apr 03, 2017· The first published, reference to themining ofcoalin India dates back to the year 1774in the RaniganjCoalField.Coal miningmethods can be broadly divided into two types viz.SurfaceMiningMethodsand UndergroundMiningMethod. The Indiancoal industryis the world’s third largest in terms of production and fourth largest in terms of reserves.

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