Established in 2017, Henan Zhongzheng Doors And Windows Co., Ltd. is a premier manufacturer based in Nanyang, Henan, China, specializing in the research, design, production, and installation of functional thermal break aluminum doors and windows. Operating a 5,000-10,000 square meter factory with 51 to 100 employees, we generate an annual output value of US$2.5 million to US$5 million. Our core offerings feature high-performance solutions like the Series 3 narrow-frame tempered glass interior bathroom doors. With comprehensive OEM and custom design services, we serve global markets including South America (30%), Eastern Europe (25%), Western Europe (20%), North America (10%), and Southern Europe (10%), delivering top-tier soundproof and waterproof door systems for residential and commercial projects.