1. When installing the hinge and the door, first adjust the door and then tighten the screw.
2. When the hinge and the frame are installed, first lock the longitudinal movable snap and then lock lateral movable snap.
3. When the door and frame are installed, install them in order of up, down and down.
4. The single-sided door gap of the door and the frame is in the range of 11 ~ 12mm.