All our product materials have been tested by „ift“ (Institute for Window Technology – Rosenheim, Germany) in accordance with the QM 328 certification, which was developed by „ift“ and is currently by far the toughest test regime for Turn-only and Tilt & Turn hardware. The result: SIEGENIA is world-wide the first hardware manufacturer to have been awarded the ift-Q-Certification. This will assure customers of our consistent commitment to the high-quality of our products and also of the integrity of the hardware that has been tested, as this is embedded in the certification process. Our attention to detail leads to considerable time-savings and enables window fabricators a fast and cost-effective transition to innovative new developments. Crystal clear test results for our window hardware . During the QM 328 certification process, the hardware is subjected to a performance test, which includes 25,000 rotary cycles as well as for example introducing an obstacle in the rebate during testing. Furthermore, the certification also requires a comprehensive quality audit of the hardware manufacturer, permanent self-monitoring via a defined, company-specific production control process as well as regularly scheduled external monitoring through an independent examination board. Stock-holding advantages and cost savings. · Preparation of a symmetric drill & screw pattern for the top and bottom hinge is already possible prior to jointing. · Simple installation technology through universal drilling jigs. · Wooden windows: with a routing depth of just 5 mm; enough insulating wood remains to prevent cold bridging. · Standard components for right and left. · Hinges and frames range compatible with TITAN AF. Call us at (551) 301-6058.