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Strip mining is commonly used for mining coal seams and phosphate beds. In hilly terrain the mining of the overburden and the deposit (usually a coal seam) follows the contour around the hill and into the hillside up to the economic limits; hence it is called contour mining. In dredging at one time either as underground seams ...Leaching Gold Bearing Ore Equipment In Bangalore. We are a large-scale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment milling equipment mineral processing equipment and building materials equipment And they are mainly used to crush coarse minerals like gold and copper ore metals like steel and iron glass coal asphalt gravel ...thinkquestmachinery used in mining coal. Used coal mining equipment products are most popular in Domestic Market,

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gas poison and explosions. Machinery use These are used when mining is done in the surface.Surface Mining. 1. Strip Mining. Strip Mining is used when coal is near the surface of when the overburden is unstable. As mining progressesIt is the main mineral processing solutions. Get Price. Coal McLanahan Corporation. Extracted from the ground through underground or surface mining,

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