GLOBALink | Giant variable diameter TBM unveiled in China's Changsha
CHANGSHA, April 22 (Xinhua) -- A giant variable diameter tunnel-boring machine (TBM) made by a Chinese company rolled off the assembly line on Thursday in Chang
Hunan Province China Railway Construction Heavy Industry Co Ltd Xinhua Global Service Xinhua Global Hunan Province Ariable Diameter
Source: shanghaisun.com