PK Transport Systems to supply 81 trams to St. Petersburg, Russia April 16, 2022 | Company News, Europe Company News, Europe News, News PK Transport Systems has secured a contract to supply 81 low-floor trams to St. Petersburg. The order comprises 23 72-923M Bogatyr-M two-section trams and 58 sectional 71-931M Vityaz-M trams in standa... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password