Keep track clean.
Beware of heavy objects hitting the track.
Clean with non-aggressive cleaning fluid.
If the mirror surface or board surface is damaged, you can ask professional personnel to replace it.
For safety reasons, it should always be checked whether the anti-jump card device is in effect.
When it is found that the door body is not close to the wall, ask professionals to adjust the lower wheel screw to achieve the tightness of the door body and the wall.