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World's largest-diameter shaft boring machine built in China

CREC Qiming, the world’s largest-diameter shaft boring machine, has rolled off the production line

Duncan Moore
The world’s largest-diameter shaft boring machine, “CREC Qiming”, has rolled off the production line in Zhengzhou, China

The world’s largest-diameter shaft boring machine, “CREC Qiming”, has rolled off the production line in Zhengzhou, China | Credits: China Railway Tunnel Group

The world's largest-diameter shaft boring machine, "CREC Qiming", jointly developed by China Railway Tunnel Group and China Railway Hi-Tech Industry under CREC, has rolled off the production line in Zhengzhou,...

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