Zhongjingguorui is capable of providing high-quality aluminum alloy doors and windows. Its products is featured by high strength, high sealing performance, high heat insulation performance, excellent decorativeness, high stability, strong durability, small deformation, and are easy to be processed. In combination with advanced sealed drainage system and utilizing the principle of pressure balance, dual-pass sealing strip and ring weather-proof sealant are adopted to reach an ideal airtight and watertight performance. In addition to providing various environment friendly doors and windows with high energy saving as well as economical doors and windows, the Company is also capable of customizing door and window products in unconventional sizes as required by the customers, and meanwhile reaching the ideal effect of buildings with assured quality and quantity