Light rail, subway, high-speed rail supporting product areas, including the conductor rail profiles and subway lines signal transmitting waveguide sections, manufactured by Siemens, Bombardier and Alstom, Nanjing changpuzhen, long off Qingdao Sifang vehicle company body partsand modules.As a high-speed train, the city with the vanguard of the manufacturers of the light rail, subway profiles for the localization of the three industries have made outstanding contributions.