In the assembly department, the measurements determined according to the customer demands are converted to digital in computer environment. All stages are carried out with the accompaniment of CNC-controlled machine park. The profiles cut with the double head cutting machine are transferred to the next stage with a carrier. The four corner welds provide miter and precise joining. Subsequently, the welding burrs of the incoming frame are cleaned in the grinding line, which is integrated with this system. In the production phase, accessories and auxiliary materials for doors and windows are installed and made ready to transport.