Klein Intelligent Technology (Shandong) Co., Ltd. is an industrial and commercial enterprisethat integrates design, production, sales, and construction. Our main products include auto.matic swing doors, revolving doors, spring doors, aluminum alloy glass doors,folding door,overhead door, folding window, aluminum alloy windows, aluminum louvers, door andwindow hardware accessories, and more. Numerous product patents and participation in theconstruction of many national and provincial key projects. After more than ten years of devel.opment, our company's products have been widely used in high-speed railway stations, hos-pitals, schools, commercial centers, corporate headquarters, etc., and have been recognizedby a large number of customers!