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CRCHI produce the largest largest diameter Tunnel Boring Machine in China. 16.64 meters in diameter
Self-developed jointly by the China Railway Construction Heavy Industry Co., Ltd. (CRCHI) and China Railway 14th Bureau Group Co., Ltd. in Changsha, capital city of central China's Hunan Province.
cover tunnel photo by: Matt Brown from London, England / CC BY
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China turns out its self-developed tunnel boring machine with biggest diameter - xinhua
the machine, with a maximum excavation diameter of 16.64 meters...
https://english.news.cn/20241031/2c044cd6f9734669906a7d95cebcfa8c/c.html
China turns out its self-developed tunnel boring machine with biggest diameter
english.news.cnChina turns out its self-developed tunnel boring machine with biggest diameter-