The Nanjing Metro is an urban rail transit serving Nanjing, China, and various areas of the Nanjing Metropolitan Area. Its first subway line opened on May 15, 2005.
Till December 2020, Nanjing Metro has opened a total of 10 operating lines, including lines 1, 2, 3, 4, 10, S1, S3, S7, S8, and S9, all of which use the subway system, with a total of 174 stations. The total length of the Metro line of Nanjing is 378 km and the total length of the line ranks 6th in China (after Shanghai, Beijing, Guangzhou, Chengdu, and Shenzhen), covering 11 municipal districts of Nanjing. Nanjing became China's first city will all districts and counties to cover subways.
Anyang Railway Equipment Co., Ltd(AT) provided ZX-2 railway tie plates, WJ-2 tie plates, I-type separate tie plates, and different kinds of bolts for Nanjing Metro Line 3.
Anyang Railway Equipment Co., Ltd(AT) provided all kinds of ZX-2 railway castings for Nanjing Metro Line 4.
Anyang Railway Equipment Co., Ltd(AT) provided separate fastening systems with II-type spring clips, non-separate fastening systems with II-type spring clips, joint bars, I-type fastening systems, WJ-21A type overpass fastening systems, inspection pit fastening systems, etc for Nanjing Urban Transit Railway.