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Visitors look at a mining equipment at the 2016 China Mining Congress and Expo in Tianjin, north China, Sept. 23, 2016. The theme of the mining event is "From Novel Concepts, To Innovative Solutions". (Xinhua/BaiYu)
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Visitors look at a mining equipment at the 2016 China Mining Congress and Expo in Tianjin, north China, Sept. 23, 2016. The theme of the mining event is "From Novel Concepts, To Innovative Solutions". (Xinhua/BaiYu)
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