VDL to supply 55 electric buses to RET, Netherlands July 18, 2018 | Europe Company News VDL Bus & Coach (VDL) has secured a contract from Rotterdamse Elektrische Tram (RET) to supply 55 Citeas SLF-120 electric buses, charging infrastructure, related systems and project management ser... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password