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Haulers Speed Control Method Used In Coal Mines

Dogs used in Coal Mines 1903 Annual Coal Report 5 Dogs Employed in Mines for Hauling Cars McDonough County Illinois In McDonough County mines 31 dogs are employed for drawing empty and loaded cars of coal to and from the mines to the bottom of the shaft or to the mouth of the drifts

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As a green intelligent mining machine importing and exporting factory, Hongxing Machinery has produced the five series of equipment including crusher, sand-stone, grind milling, ore dressing, and building material equipment. Hongxing machinery has also independently developed Hongxing series mobile crushing plant, HD German type jaw crusher, HVI type sand maker, PCZ type heavy hammer crusher and other high value-added products. What’s more, it passes the ISO9001, CE and GOST International Quality System, and wins many awards such as "China Famous Brand" and "China's Top 10 Mining Machinery Brands ".

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