An old style passenger train 7524 from Yinhcuan to Rujigou is seen traveling at a slow speed of 60kmh in Helan Mountain area, Northwest China's Ningxia Hui autonomous region, January 20, 2020. The train has been put into operation since 1972. (Photo: China News Service/ Yang Di)
An old style passenger train 7524 from Yinhcuan to Rujigou is seen traveling at a slow speed of 60kmh in Helan Mountain area, Northwest China's Ningxia Hui autonomous region, January 20, 2020. The train has been put into operation since 1972. (Photo: China News Service/ Yang Di)
An old style passenger train 7524 from Yinhcuan to Rujigou is seen traveling at a slow speed of 60kmh in Helan Mountain area, Northwest China's Ningxia Hui autonomous region, January 20, 2020. The train has been put into operation since 1972. (Photo: China News Service/ Yang Di)
An old style passenger train 7524 from Yinhcuan to Rujigou is seen traveling at a slow speed of 60kmh in Helan Mountain area, Northwest China's Ningxia Hui autonomous region, January 20, 2020. The train has been put into operation since 1972. (Photo: China News Service/ Yang Di)
An old style passenger train 7524 from Yinhcuan to Rujigou is seen traveling at a slow speed of 60kmh in Helan Mountain area, Northwest China's Ningxia Hui autonomous region, January 20, 2020. The train has been put into operation since 1972. (Photo: China News Service/ Yang Di)
