Flagglas MarkenKreis is a cooperation between medium-sized, high-performance companies in Germany and Europe. The legally and organizationally independent members of the group produce, trade and install branded functional glass (insulating glass, toughened and laminated safety glass) under license. The production takes place in accordance with uniform quality guidelines and from semi-finished products from well-known basic glass manufacturers. As the system headquarters, Flachglas MarkenKreis GmbH, based in Gelsenkirchen, supports the activities of its members with numerous services and service products. It is also the central contact for application-related advice