A tunnel-boring machine (TBM) is capable of digging full-face tunnels underground. Working in a variety of terrains, they usually weigh over 6,000 tons and span more than 150 meters in length. Join CGTN on a tour of Shenyang Economic & Technological Development Zone, let's discover how these "underground giants" are made, and what roles do they play in a fast developing society.
Copyright © 2020 CGTN. Beijing ICP prepared NO.16065310-3