Metrowagonmash to overhaul rolling stock for Budapest Metro Line M3 July 8, 2015 | Europe Company News Budapesti Közlekedési Központ (BKK) has selected Russia-based rolling stock provider, Metrowagonmash, to overhaul and modernise 37 six-car trains, provide related services (valued at EUR219.2 million)... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password