Jiangshan OUPAI Door Industry Co., Ltd. is a professional door manufacturer integrating R&D, production, sales and service. OUPAI takes "global wooden door manufacturing expert" as its own responsibility. Since its inception, it has focused on wooden doors and innovation. It has set up "Research and Development Center of wooden doors" and "production, education and research Base", and has been working with ingenuity for more than ten years to create wood doors, aluminum doors, fire doors, steel and wood doors and other high-quality products. Relying on management innovation and technological innovation, the company has obtained a large number of patents to promote the technological progress of enterprises. The company has its own large manufacturing bases in Jiangshan, Zhejiang, Lankao, Henan, Chongqing and so on, with advanced intelligent manufacturing equipment, inspection instruments and large standardized plants.