Roto, a manufacturer of window and door technology, announced that its FS Kempton four-bar hinge was verified by the European standards DIN EN 13126-6 and DIN EN 1670, JG/T 127 (China).

Additionally, the friction stays are now included in the American Architectural Manufacturers Association’s (AAMA) verified component list due to its compliance with the American standard AAMA 904.

According to Roto, its friction stays are designed to allow the production of user-friendly windows even with heavy glazing. The product is easy to install thanks to optimized overruns, upstands and adapted kinematics.

It also features marked stays that allow for easy identification during production and maintenance and is available for all common profile systems and materials.