Fujian Sanyi Door Industry Co., Ltd. was established in September 1992, mainly engaged in the research and development, production and sales of fire doors, security doors, fire windows, rolling shutter doors, aluminum alloy doors and windows, stainless steel products, copper products and other products. The series of products produced by the company have become a material supplier for government engineering, military engineering, enterprise and institution engineering, real estate engineering and other construction projects. It is a large-scale enterprise in the door and window industry in Fujian Province.