(260505) -- NANNING, May 5, 2026 (Xinhua) -- Workers from the China Railway 20th Bureau Group operate at the construction site of an urban village renovation project in Nanning, south China's Guangxi Zhuang Autonomous Region, May 5, 2026. Workers from the China Railway 20th Bureau Group stayed at their posts at multiple construction sites during the May Day holiday to ensure the high-quality and efficient delivery of these projects. (Xinhua/Huang Xiaobang)