Trensurb awards rolling stock maintenance contract to CAF Brazil July 15, 2014 | Latin America News Trensurb, the Porto Alegre regional metro operator, has awarded a BRL79.7-million contract to Brazil-based Brasil Industria e Comercio CAF, a subsidiary of Spanish rail manufacturer CAF, to maintain i... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password