CSR Nanjing Puzhen to supply catenary-free trams for Nanjing April 22, 2013 | Asia Pacific Company News China-based CSR Nanjing Puzhen Rolling Stock Company Limited has secured a contract to supply 15 catenary-free, low-floor trams for the city of Nanjing. The contract follows an order won by C... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password