What is original place for system Windows？
The system doors and windows originated in Europe, and after years of use, the airtightness and energy-saving effect of the doors and windows were taken into consideration in the design. System doors and windows are a series of important functions that the system company adopts as a whole door and window system solution, making a clear commitment to the performance and quality indicators of the product. It is necessary to consider a series of important functions such as water tightness, air tightness, wind pressure resistance, mechanical strength, insulation, sound insulation, anti-theft, shading, weather resistance, and operating feel, as well as the comprehensive performance results of equipment, profiles, accessories, glass, adhesive, and sealing components.