1. The profile frame width is 70mm, wall thickness is 1.6mm, it is called as 70 insulation vertical hinged door and window;
2. Adopting quality nylon glass fiber (PA66) 20mm heat insulation rubber strip, it features low heat transfer coefficient, and better heat and sound insulation performance;
3. This series can be made into horizontal pivoting window, out-opening window, inward opening door, folding door and horizontal pivoting sliding door;
4. The drainage structure is designed with "double equal pressure chamber" sealing technology. The frame and sash are multi-sealed. The whole window has excellent anti-water and drainage performance and extremely high air tightness;
5. The hardware slots of this series are designed according to European standard slot, with hardware accessories meeting the European standard. In addition, it can be installed with hidden hinge, and the appearance is more beautiful;
6. The glass of this series adopts three-layer glass with better heat and sound insulation performance;
7. This series is suitable for northern areas;