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Question:

Why the security door locked from the outside, which people can not open?

From the outside locked the door, if there was someone, why from the inside of the long floating of the spring of the valve Tong Tong Kun also can not open it? Are all the doors so? Is this the door ok? Why not design the lock inside the key can also be opened with more ah

Answer:

Mainly to see the specific door, however, are generally inside the lock after the outside can not open, you this door a bit special.
See what the door and lock ninety percent of the door lock as long as the lock inside the inside also need to key to open! The The The The The
Anti-theft door outside the lock, which can be opened with a key, can not open is broken

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