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China's largest homemade slurry tunnel boring machine rolls off production line (3)

(Xinhua)    14:35, September 30, 2018

China's largest slurry tunnel boring machine (TBM) rolls off the production line in Zhengzhou, capital of central China's Henan Province, Sept. 29, 2018. The machine has a diameter of 15.8 meters, making it the largest slurry TBM designed in China. (Xinhua/Feng Dapeng)


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(Web editor: Shi Xi, Bianji)

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