Construction of underground utility tunnel completes in China's Gansu
Xinhua,June 03, 2019 Adjust font size:
An undated screen shot shows the illustration of structure of the underground utility tunnel in Baiyin City, northwest China's Gansu Province. The 2.238 billion yuan (about 324 million U.S. dollars) project, a 26.25 km-long tunnel capable of installing 8 kinds of utility pipes, was completed recently. (Xinhua)