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Images record Gaoping's 40-year journey

chinadaily.com.cn | Updated: 2018-08-16 07:00
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Workers at Xinzhuang Coal Mine in 1980. [Photo by Qin Hongyu/cpanet.org.cn]
Large machinery used in coal mining at Xinzhuang Coal Mine in 2009. [Photo by Qin Hongyu/cpanet.org.cn]

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