A: In the case of asymmetry in the two sheets of shower hinge, it should be discerned which page should be connected with the fan, which page should be connected with the door window frame, and the side connected to the three sections of the shaft should be fixed with the frame. The side connected to the shaft should be fixed with the frame.
II: Before installation, check whether the window frame and the fan are matched. Check if the page slot matches the height, width, and thickness of the page. Check whether the screws and fasteners that are connected to it are matched. When installing, ensure that the page axis on the same fan is on the same plumb line so as not to cause the door/window fan to spring up.
Three: The connection of the hinge should match the material of the frame and the fan. For example, the shower hinge used for the steel frame wooden door, the side connected with the steel frame is welded, and the side connected with the wooden door is fixed with wood screws.