| 摘要 |
<p>Provided that a door is equipped with the mentioned latch (device), it is impossible to open it with a pass key. Given that the door has steel frames, the bolt of the lock does not provide much chance for entry, but the door can be opened with the use of a crowbar. The above latch system prevents opening the door with a crowbar, a similar device, or any other tool. Thieves use various spray chemicals or caustic products shot into the keyhole, which destroy its components, thereby breaching the lock. With the current system, this is not possible.</p> |
