The W400 system is a lightweight, versatile, non-insulated system whose main characteristics are its flexibility and the easy adaptation to a wide variety of applications. Its harmonious design from curved lines that lead to straight and flat surfaces combines traditional with modern look, offering many functional values. In cooperation with the SL205 system, “school” type windows (sliding window with opening skylight) can be created.

Thanks to the solutions offered by the W400, it proves to be an extremely efficient system both for its durability and functionality.