The Carlstar Group has strengthened its team with the appointment of a European product manager. The company reported today that Balazs Sztranyai began in this role last September. Sztranyai is based in Carlstar’s European head office and supports the Group and its partners on site as well for field testing or surveys for all segments and brands, including Carlisle, ITP, BlackRock, Marastar, Unique and Cragar.