Used to open the door to open, so close the door to open the door operations are carried out in the house, hands do not have to stretch out, the body do not have to probe out, the door is not good to close the state is also easy to observe, but when the door from the outside But the new door anti-theft door opened to open, open the door to operate the arm to reach out, the door open state when the body must be stuck out, off the state is not easy to detect, but the state is not easy to detect, but the door is not easy to detect From the outside when the door was very safe, is the door frame around the block drive. Each has its own advantages and disadvantages, which switch should choose the best direction, what stresses it? More
Open to the outside, save the interior space, but also conducive to the escape of emergency time.
Now are open to the outside, I did not pay special attention
Now the security door has a heavy effort to dry up to the courage to gradually feel the function is doubles as a fire door, do not believe you look at any security door issued by the Ministry of Public Security certificate of identification, mostly fire identification based, strange is Chaos identification is less. Because both fire function, so open to the scientific and reasonable, one is to prevent the external fire broke into the room, the second is the indoor fire, easy to break out. Anti-theft door to open the main, there are also open, but generally belong to the special door, delivery is also higher.
