2020-10-21 00:00:00 With this App Dr. Hahn provides all the instructions for making adjustments easily. intuitive and easy to consult use with only one hand is faster the right education. It no longer needs a print or an internet connection. They contain all the instructions for the hinges Dr. Hahn adjustments for aluminum and PVC doors, including variants in two or three wings, as well as mounting with and without KT-FIX. In a clearly structured way for sections of horizontal adjustment, vertical and sealing pressure. The individual steps are explained in detail. Many instructions are also available as video.