1. The Heat Insulation Profiles for windows & doors were manufactured in line with Chinese national standards GB/T 23615.1-2009, with extremely high mechanical strength and withstand tensile shear stress, can be acted as the connecter to the hardware;

2. The linear expansion coefficient is close to aluminum, to ensure that when temperature changes, the Heat Insulation Profiles for windows & doors and aluminum profiles expanding in the same time to ensure fitting closely;

3. Highly heat distortion temperature, to meet subsequent processing on the surface of profiles;

4. High dimensional accuracy, ensuring airtight, watertight performance of the windows breaking thermal with polymer profiles;

5. Anti-aging, anti-UV performance, long using life;

6. Superior chemical resistance.