https://www.railwaypro.com/wp/alstom-to-maintain-trensurb-metros-for-the-porto-alegre-metro-line-1-2/
Alstom to maintain Trensurb metros for the Porto Alegre Metro line 1
Mar 11, 2015 - Alstom signed a contract with Empresa de Trens Urbanos de Porto Alegre (Trensurb) to provide preventive maintenance for 15 metro [...]
porto alegre metrofor thealstommaintainmetros