Workers assemble components of the bogie at a maintenance center in Zhengzhou, capital of Central China’s Henan province, Feb 26, 2019. Workers of a maintenance center of China Railway Zhengzhou Group Co Ltd are dedicated to checking China Railway Express cargo trains to ensure safe transportation. [Photo/Xinhua]
A worker arranges wheel sets at a maintenance center in Zhengzhou, capital of Central China’s Henan province, Feb 26, 2019. [Photo/Xinhua]
A worker cuts components of the bogie at a maintenance center in Zhengzhou, capital of Central China’s Henan province, Feb 26, 2019. [Photo/Xinhua]
A worker checks a cargo train at a maintenance center in Zhengzhou, capital of Central China’s Henan province, Feb 26, 2019. [Photo/Xinhua]
A worker cuts center plate rivets of a cargo train at a maintenance center in Zhengzhou, capital of Central China’s Henan province, Feb 26, 2019. [Photo/Xinhua]
A worker assembles the main valve of a brake valve at a maintenance center in Zhengzhou, capital of Central China’s Henan province, Feb 26, 2019. [Photo/Xinhua]
