CRRC unveils catenary-free tram for Delingha LRT, China May 10, 2018 | Asia Pacific News CRRC Qingdao Sifang (CRRC) has unveiled a catenary-free tram, which will be deployed on a 14.4-km long light-rail transit (LRT) line in Delingha in the Qinghai province of China. The line will cover 1... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password