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South Africa Reef Mining Method Longwall Where Society

South Africa Reef Mining Method Longwall Where Society

2020-5-6Longwall mining. Longwall mining is applicable to bedded deposits of uniform shape limited thickness and large horiontal extension e.g. a coal seam a potash layer or the reef the bed of quart pebbles exploited by gold mines in South Africa. It is one of the main methods for mining coal

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