Product group called "Fetter sets" is used for wide range aluminium and PVC tilt and turn window systems. The group is consisted of diverce products for variety of window systems and they all are in service to satisfy different customer demands and needs for window functionality. This product range has few main products that shape all other and they are tilt and turn system configurations 4010.00, 4030.00, 4035.00, 4050.00, 4070.00, and 4020.00 ventus system. All parts in this product range are made from aluminium and zinc alloys, plastic and zinc plated or stainless steel.