There are exquisite installation pages. The six major points to pay attention to are:

(1) Before installation, check whether the matching page matches the window frame and fan. (2) Check whether the closing slot matches the height, width, and thickness of the closing page. (3) Check whether the screws and fasteners connected to the hinge are compatible. (4) The connection of the hinge shall be matched with the material of the frame and fan, such as the closure used for the steel frame door, the side connected to the steel frame shall be welded, and the side connected to the wooden door fan shall be fixed by wooden screws. (5) In the case of asymmetry between the two pages of the closure, which page should be connected to the fan, which page should be connected to the door window frame, and the side connected to the three sections of the axis should be fixed to the box. The side connected to the two sections of the shaft shall be fixed to the doors and Windows. (6) When installing, ensure that the shaft of the same joint is on the same lead line to prevent the doors and Windows from jumping.