Grand bridge of Guiyang-Nanning high-speed railway under construction

Workers spray water on prefabricated components for the construction of Guiyang-Nanning high-speed railway in Dushan County, southwest China's Guizhou Province, April 20, 2021. Guiyang-Nanning high-speed railway is designed with a maximum speed of 350 km per hour. (Xinhua/Liu Xu)