Elevator triangular key New small inner triangular four-corner multi-functional universal key

When opening the elevator hall door, be sure to carefully observe the elevator position to see if it is within a safe range to prevent danger.

It is strictly prohibited to open the elevator hall door while the elevator is running. In addition to being unsafe, it may also cause certain damage to the elevator.

After closing the door, you must confirm that the door is locked. Some doors have been locked for a long time and their reset ability is weakened, so they need to be reset manually.