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Mining Of Coal Im A Flow Chart

2019-10-15coal is the main source of energy in china in 2011, seven chinese coal mining companies produced 100 million metric tonnes of coal or morehese companies were shenhua group, china coal group, shaanxi coal and chemical industry, shanxi coking coal group, datong coal mine group, jizhong energy, and shandong energyhe largest metallurgical coal producer was shanxi coking coal.

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