Q:Their own security door, every time the door is very costly to open the door. Lock the door when the door handle up to mention, very easy. But when the door open, whether it is inserted into the key from the outside open, or from the inside down the door handle, it is difficult to open the door, that a few out from the door that a few columns (Figure) is difficult to retract Inside the door. What is the cause of this? What steps need to be done to make it switchable? More

You have no oil, and now the lock is not oil, if they have all inside will be tired of the inside. This can only change the lock core.

Q:Class A anti-theft fire door standard is what

Class A security door is anti-damage time greater than or equal to 30 minutes, the surface material thickness 2mm, degree lock points 12. Class A fire doors are fire-resistant insulation, fire integrity greater than or equal to 1.5 hours. Security door full name anti-theft security door, the latest national standard "anti-theft security door general technical conditions", the anti-theft door security level is divided into: A, B, C, D four levels. Fire doors should be divided into a, B, C three, the fire insulation, fire integrity is greater than or equal to the following values: Class A should be 1.50h; B should be 1.0h; C should be 0.5h. - "fire safety standards" GB-2008, 4.5.1.2 of the provisions.

Q:What is the filler inside the security door

Anti-theft door of the filler should be able to play a number of roles: sound insulation, warm, Dan grass grass old mud to stabilize some plant hooligans fire, so the state of the internal requirements of the security door must be aluminum silicate rock wool, because silicon Alkaline rock wool has a good insulation, fire and noise performance.

Q:How to identify the quality of security doors

Anti-theft door points several, if it is steel door you just open the cat's eye or remove the lock to see the thickness of the steel plate on the line! Other security door you flower lambs barley Karma cut the public stem as long as the weight on the line

Q:Is a door when a door on a door with a handle, the other is the ground there is a groove that does not move the door so that can be installed to prohibit the more

Can ah, casually an access control engineering company can help you change, or even lock the store can help you modify, this asked the technical difficulty is very low.

Q:Whenever the wind or other people open the door or the corridor chop to avoid the heap stumble across the lack of painting unit door switch, his home Panpan anti-theft door will follow the bang box ring, very annoying, asked a sell anti-theft The door of the master, said the seal is not good, not good repair, I wonder if they can do? More

To buy a roll of double-sided tape, to find some thin sponge, and then double-sided plastic chu to avoid the heap stumbling through the side of the painting with a stick on the door, while the thin sponge will be cut into the top of the stick, so The door does not ring, you can find my way to try, the effect is guaranteed good.

Q:I would like to do anti-theft door business, but do not know from there entry, Shanghai floating high spring 薨 薨 arm for the anti-theft door on the door also do not understand, please help me. The The The The How can the security door to do business! The The More

You go to someone else's home, and then go to sell

Q:What is the specific composition of the direct-style intercom system of the anti-theft door intercom system? The More

Now too many market products, we generally use these are these | 1. Unit door machine 2. Indoor extension 3. Unit door machine power supply 4. Indoor extension power supply 5. Closer 6. Magnetic lock tripod satin and so on to urge to wear slip 7. Signal line with Rvv0.5m ㎡ signal line or 8x0.25m ㎡ cable can also 8. Power line with RVV3 × 1.0m ㎡ 9. Floor distributor, if it is an indoor extension, built-in decoding can be used.

Q:How to do anti-theft door paint? (Blue door) nonsense do not say, brush paint, change a new door, uncomfortable door like nonsense do not have, and I do not cold and humor! Which expert in trouble? More

Live tone is not allowed! ~ Sell seven color cards to see now! ~ In the use of computer color! ~

Q:How to identify the quality of security door?

From the cylinder, the thickness of the steel plate, the internal filler. Anti-theft door there is a national standard, B / C Ding, in the door can be seen inside. Class A highest, Ding times the most times. Lock core is divided into A and B type, B-type anti-technology to open about half an hour, A-type anti-technology to open about five minutes. There is also a non-standard but better than the B-type super B-type cylinder. Good anti-theft door is generally filled with fire rock wool or aviation aluminum foil. Ya Dili music, Jingjing, cloth Yang are first-line brand.