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

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China's largest slurry tunnel boring machine (TBM) rolled off the production line in Zhengzhou, capital of central China's Henan Province, on Saturday.

Xinhua丨Updated: 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. [Photo/Xinhua]

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