China Mining Conference and Exhibition 2019 held in Tianjin

Source: Xinhua| 2019-10-09 22:02:55|Editor: ZX

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CHINA-TIANJIN-MINING CONFERENCE AND EXHIBITION (CN)

People view an equipment at the China Mining Conference and Exhibition 2019 in Tianjin, north China, Oct. 9, 2019. (Xinhua/Zhou Runjian)

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