heroal sliding and lifting-sliding systems stand out for their great flexibility and efficient fabrication. A wide range of different systems for external and internal use and additional components make it easy to meet individual customer needs and special design requirements, as well as different technical requirements, for example on thermal insulation, accessibility and burglary resistance. A low manufacturing complexity, well-thought-out design details of frame and sash profiles, as well as matching accessory sets, enhance process reliability and provide for a reliable and efficient manufacture and installation.