Why is it difficult to open and close the security door? Laiwu repairs the door and locks the phone.
Because of the heavy weight of steel doors, after a period of use (usually 1-3 months), the door leaves may fall slightly, which will make the switch difficult. After confirming this problem, you can lower the lock control on the door frame with a falling knife, or add a thin meson to the hinge.
Because of the heavy weight of steel doors, after a period of use (usually 1-3 months), the door leaves may fall slightly, which will make the switch difficult. After confirming this problem, you can lower the lock control on the door frame with a falling knife, or add a thin meson to the hinge.
If it still cannot be solved, please contact Laiwu Wanbao Unlock 0634-8588110.