A staff member works at a workshop of a train maintenance base in Datong, north China's Shanxi Province, May 12, 2022. To ensure safe and smooth transportation on the Datong-Qinhuangdao Railway, workers of China Railway Taiyuan Group Co., Ltd. conduct regular maintenance on the heavy-haul freight trains after cargo delivery. (Xinhua/Cao Yang)
A locomotive receives cleaning at a maintenance base in Datong, north China's Shanxi Province, May 12, 2022. To ensure safe and smooth transportation on the Datong-Qinhuangdao Railway, workers of China Railway Taiyuan Group Co., Ltd. conduct regular maintenance on the heavy-haul freight trains after cargo delivery. (Xinhua/Cao Yang)
Aerial photo taken on May 12, 2022 shows freight trains at a maintenance base in Datong, north China's Shanxi Province. To ensure safe and smooth transportation on the Datong-Qinhuangdao Railway, workers of China Railway Taiyuan Group Co., Ltd. conduct regular maintenance on the heavy-haul freight trains after cargo delivery. (Xinhua/Cao Yang)
A worker checks the overhead catenary system of a freight train at a maintenance base in Datong, north China's Shanxi Province, May 12, 2022. To ensure safe and smooth transportation on the Datong-Qinhuangdao Railway, workers of China Railway Taiyuan Group Co., Ltd. conduct regular maintenance on the heavy-haul freight trains after cargo delivery. (Xinhua/Cao Yang)
A worker checks the conditions of a freight train at a maintenance base in Datong, north China's Shanxi Province, May 12, 2022. To ensure safe and smooth transportation on the Datong-Qinhuangdao Railway, workers of China Railway Taiyuan Group Co., Ltd. conduct regular maintenance on the heavy-haul freight trains after cargo delivery. (Xinhua/Cao Yang)
A worker checks the conditions of a freight train at a maintenance base in Datong, north China's Shanxi Province, May 12, 2022. To ensure safe and smooth transportation on the Datong-Qinhuangdao Railway, workers of China Railway Taiyuan Group Co., Ltd. conduct regular maintenance on the heavy-haul freight trains after cargo delivery. (Xinhua/Cao Yang)
Workers conduct maintenance on a freight train at a maintenance base in Datong, north China's Shanxi Province, May 12, 2022. To ensure safe and smooth transportation on the Datong-Qinhuangdao Railway, workers of China Railway Taiyuan Group Co., Ltd. conduct regular maintenance on the heavy-haul freight trains after cargo delivery. (Xinhua/Cao Yang)
