Aluminum doors and windows for doorways

Each type of doors and windows is divided into basic doors and windows and combined doors and windows. Basic doors and windows are composed of frames, fans, glass, hardware accessories, and sealing materials. Combination doors and windows are composed of two or more basic doors and windows combined into other forms of windows or even-window doors with stitching materials or turning materials. Each kind of door and window is divided into several series according to the thickness of the door and...