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machine used for digging coal
  • machines used to mining coal - Cutting Head

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  • Coal mining - Wikipedia

    Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content, and, since the 1880s, has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production.

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  • 24 Digging Machines That Created a World Beneath Our Feet

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  • machine used for digging coal - Roadheader Cutting Machine

    24 Digging Machines That Created a World Beneath Our Feet. 1908. Machine used in Gary, West Virginia digs the coal and loads it onto the car. With it, three men could do the work of 50 in the old way.

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