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Shitouzhai tunnel boring finish. 70th tunnel of 93 tunnels China-Laos railway
12 km long Shitouzhai tunnel boring finish. Shitouzhai tunnel in southwest of China's Yunnan Province. It is 70th tunnel of 92 tunnels 1000km China Laos railway.
cover tunnel photo by: Matt Brown from London, England / CC BY
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Tunnel on China-Laos railway drilled through - Xinhua | English.news.cn
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