All 47 tunnels completed on 435-km Lhasa-Nyingchi railway
2020-04-07 15:59
Construction on the last two of the 47 tunnels on a 435-km railway linking Lhasa and Nyingchi.
All 47 tunnels completed on 435-km Lhasa-Nyingchi railway
Construction on the last two of the 47 tunnels on a 435-km railway linking Lhasa and Nyingchi.