Summary: The quality of the process, design and quality assurance, and the window series within 100H of the new European window, from outside performance to detailed design, are derived from the top quality standards of the European Group industry. As an integral part of the building, the doors have a major responsibility and mission in their home lives. This mission and responsibility need to be qualitative. Now, as consumers’ needs for quality of life are constantly rising, door-window ente...