Anti-theft door handle double live handle can use double fast handle? Is the original double live, replaced by double fast what impact?
Can put on no problem, double fast talk about the lock body, double live is the handle! Single handle (outside the handle is fixed, inside the handle can only be pressed down) double live (inside and outside the handle can be pressed down) double fast (outside the handle can be raised to achieve fast lock door, inside the handle Can be raised to achieve fast lock door can also be pressed down to achieve a quick open the door, but the double fast handle must be used together with the double fast lock to achieve fast lock function). This lock is not convenient to use, but there is an advantage that is faster than the double fast single live lock failure rate, double fast failure rate high. If you need to replace the general professional lock stores can be replaced, must be a complete set of double lock function structure is not the same. The quality of the door is divided into Grade A and Grade C, Class A is the highest level. And the lock level, the current national standard only A-class B-class, A-level for the most common level B is 5 minutes to open the level of technology, according to this level lock factory to create a longer time to open the lock, such as: Class C Super C is also known as Enterprise. Super Bc-class brand is very complex to recommend the replacement of regular manufacturers products.
I think the safety of living alone as a single live.
Can put on no problem, double fast talk about the lock body, double live is the handle!
