The 13.59km-long Gongduoding tunnel along the Sichuan-Tibet Railway in southwest China's Tibet Autonomous Region was completed on June 9. It is the third longest tunnel on the Lhasa-Nyingchi section of the railway. The tunnel will help improve the railway network and transportation infrastructure along the railway.
Copyright © 2018 CGTN. Beijing ICP prepared NO.16065310-3
Copyright © 2018 CGTN. Beijing ICP prepared NO.16065310-3