"Automatic Wheelset Structure Cleaning and Painting Equipment" for Wanqingsha Depot A of Guangzhou Metro Line 18 and 22. The subway maintenance warehouse is currently the largest train operation and maintenance base in Asia. Based on our good performance in the subway industry, we would like to thank our customers for their choice and trust. NCC will continue to use their expertise and experience to contribute to China's urban rail transit and contribute their own strength. .