Will the security door double fast lock shortcomings
The biggest drawback if not anti-lock, you can directly from the outside door pressure, forced over the card's resistance.
Double fast lock is the only point is relatively simple and convenient lock, shortcomings, lock body, pull (to) hand life is relatively short. The The
Easy to go wrong, in the outside when the handle is also a lock door, but the door can only use the key, if the key did not bring the 礌 笭 笭 locusts turn Hao Gui-glass will be locked outside, and the lock life is not ordinary The long.
