1、Wide five-chambered profile series 70 for fantastic energy efficiency;

2、Humanized appearance，a sight for sore eyes;

3、Vertically flush outer sides of the sash and frame for better watertightness;

4、Energy-efficient glass assembly;

5、Optional installation of vacuum insulating glass for fantastic energy efficiency;

6、Optional installation of insulating glass with louvers in between for good appearance and sun shading;

7、lvory-white and film-laminated profiles available.