Dangjinshan tunnel of dunge railway will be put into use

After more than six years' struggle and efforts, dangjinshan tunnel of dunhuangge (Ermu) railway constructed by China Railway 17th Bureau Group Co., Ltd. has completed various construction and testing tasks and is expected to be put into use formally this month. The dangjinshan tunnel of the

Dunhuang Gezhouba railway is a control project of the whole line of the Dunhuang Gezhouba railway. It passes through the two mountains of Altun mountain and Qilian Mountain, with a total length of 20.1km. It is one of the single tunnel with special length in China.