Established in 2017, Henan Zhongzheng Doors And Windows Co., Ltd. is a professional manufacturer in the Construction & Real Estate sector, operating from a 10,000-to-30,000 square meter factory in Nanyang, Henan, China. With an annual output value of US$2.5 Million to US$5 Million, we specialize in the research, design, production, and installation of functional thermal break aluminum doors and windows, including our premier Thermal Break Aluminum Alloy Sliding Door with Double Glazing. Backed by a dedicated R&D team of 31-40 professionals, we integrate modern aesthetics with advanced functionality like sound insulation and heat preservation. Our key export markets span South America, Eastern Europe, and Western Europe. We offer comprehensive OEM services and maintain strict quality standards to deliver high-performance, customized solutions for diverse international B2B clients.