Double-cold bridge& double-color energy saving profiles use original patented technology: 
The innovative structure of Double Connection with Polyurethane (PU) and high-strength glass fiber reinforced Nylon (PA66GF25). Under the perfect combination of these two insulation materials, the strength of profiles can reach more than three times of the national standard value and completely solved the industry problems of traditional injection profiles that low transverse tensile strength and poor high temperature mechanical properties, longitudinal shear strength and low temperature mechanical properties of threaded profiles are not ideal, and water seepage is easy to penetrate through heat insulation strips on both sides, it can also easily realize the large section structure of the injection profile, which is the perfect combination and innovation of American-style energy-saving injection technology and European energy-saving strip-piercing technology. Guangya Proud Twins Window & Door Series are using these innovative energy-saving profiles.