Workers conduct rail grinding work in Wuhu city, East China's Anhui province, Jan 27, 2021. Workers of China Railway Shanghai Bureau Group Co Ltd conduct rail grinding work on the early morning of Jan 27 to guarantee the safety of high-speed railway operations. [Photo/Xinhua]
Workers conduct rail grinding work in Wuhu city, East China's Anhui province, Jan 27, 2021.[Photo/Xinhua]
Workers conduct rail grinding work in Wuhu city, East China's Anhui province, Jan 27, 2021.[Photo/Xinhua]
Workers gather before starting rail grinding work in Wuhu city, East China's Anhui province, Jan 26, 2021. [Photo/Xinhua]
Workers conduct rail grinding work in Wuhu city, East China's Anhui province, Jan 27, 2021.[Photo/Xinhua]
