Supply of 81 standard CNG buses in Porto, Portugal April 18, 2019 | Europe Tenders Country: Portugal Organisation: Sociedade de Transportes Colectivos do Porto, S. A. Description: Bids are invited to 19 low-entry buses and 62 low-floor buses. Each bus should be 12 metres long and ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password