How to Maintain Common Key Locks?
Avoid slamming the door. Otherwise, the door lock will impact on the door frame and the life of the lock will be shortened. It is recommended to check whether the rotating parts of the lock body are lubricated once every half a year or once a year. At the same time, check whether the fastening screws are loose. Pay attention to the expansion with heat and contraction with cold caused by different weather, so as to ensure whether the fit clearance between the door and frame, the lock...