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Coal plough in mining

2014 MINING.CAT.COM 3 Abstract Plowing is a coal mining method invented in the early 1940s. Many different plow models were designed and tested underground, until—in the mid-1990s—only two models remained: the Reisshakenhobel , or base plate plow, and the Gleithobel , or gliding plow. Horsepower and plow speed have increased

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