Quality is our company culture, the company has domestic first-class production lines and testing equipment, and production processing technology. The product quality control methods are well defined and we adopt international advanced Eco-friendly stabilizers, such as American DuPont Titanium Dioxide and Swiss CIBA UV convert agent, along with other raw materials which comprise the solid foundation for our product quality assurance. During the production process we strictly adhere to the window and door profile national standard GB/T8814-2004. The company often has the establishment of technical exchange and cooperation with German technical experts. The company takes the customer's demand as the company's goal, and continuous efforts to improve people's working and living conditions.