A staff member introduces products at a booth in the 23rd Lanzhou Investment and Trade Fair in Lanzhou, capital of northwest China's Gansu Province, July 6, 2017. (Xinhua/Chen Bin)
23rd Lanzhou Investment and Trade Fair held in N China
Source: Xinhua| 2017-07-06 17:03:18|Editor: Liangyu
KEY WORDS: fair
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