Photo/Foto: Wienerberger/Andreas Keudel Photo/Foto: Wienerberger/Andreas Keudel Ralf Schwung, Managing Director at Wienerberger GmbH, has been elected to the Board of the German Society for Masonry and Housing Construction Regd (DGfM). This article appeared in ZI 01/2014 This article appeared in ZI 01/2014 Ressort: Personalia | Personalien subscription Content