CRCHI TBM "Jingtong" has excavation diameter of 13.3 meter. It is produced in Changsha, Hunan factory.

China Railway 14th Bureau project will use TBM for excavation of the Beijing -Tang Dynasty intercity railway tunnel 1285 meter long Yunchao River Tunnel.

http://finance.people.com.cn/BIG5/n1/2023/1008/c1004-40090864.html