Q:Is the cross of the key to rest, usually good, open the door today when the other live, and then how can not pull out, and finally in front of a break in the inside, and the needle is not open, do not tell me with glue ah, Look at the situation certainly not, there is no other law? I look inside the door seems to have a hole, can not try to taste from the side of the city, The More

In general, as long as the keyhole can return to the normal bit is easy to pull out the tattoo google fat stolen aldehyde saturated, should carefully check the return position, the use of fine cone can be slowly allocated, if the door is used on both sides A hole in the design, you can use a good key from the back of the top, but the premise or to return, only to return to the starting position of the lock spring and the paddle to play a role, or give the card to die, otherwise, simply take Do not come out. The The

Q:What is the size of the general security door installation? (860 * 2050 type, 960 * 2050 type)

You say is a single door, the size of the hole should be put 1cm.

Q:My security door has three kinds of keys: A decoration with two temporary, B decoration finished with their own 5, the stance shield barking Du Du Sen lack of C used to destroy A my hands in the decoration with the A key lost , In order to make the master of the decoration that the A key can continue to use, can not use the C key and directly with the B? Does this do damage the lock cylinder? More

Let the workers use the A key, the decoration is completed after the completion of the use of B key stitching barking Du Du fall forest lack of key & lt; scrap A key & gt;, B key lost or bad, with the C key to open the door & , And then change the lock heart.

Q:What is the difference between steel doors and security doors?

Steel doors are also called steel and wood sets of doors, door forming thickness of 40mm ~ 45mm, surface back and anti-theft door is the same as the use of cutting lamb and barley cut off the public slightly steel embossed board, the difference is the door frame and door The side of the body, steel and wood sets of the door is two pieces of buckle in the wooden mosaic of the frame, and then paste the PVC door frame and solid wood doors of the door frame is almost all the anti-theft door is a lot of models and some luxury doors, And anti-theft doors are used with hot coagulation powder

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

1, in the door axis plus a little oil; 2, the rubber pad fixed in the upper and lower corner of the door and door contact place.

Q:Anti-theft door lock about what it means

General right hand door for right hand lock left hand door for left hand lock

Q:Will the shutter gate and shutter doors have any difference, the general, the price is much more

Roller gate is made of metal material, such as steel roll gate, aluminum alloy roll load fines drop nuclear 郛 Gou shop too hot coffee doors are stainless steel roll gate are called roll gate shutter doors are soft type of material such as inorganic cloth fire Rolling shutter doors called shutter doors

Q:Well, now all the security door by which the patent

In the patent office website, the relevant patent is currently effective in nearly two thousand.

Q:How to identify the quality of security door?

Asked the seller to produce the relevant departments of the "test certificate of compliance" to check whether the national mandatory standards GB-1998 technical requirements. Remove the cat's eye, door bell box or lock handle, check the door body structure. The door should have a number of reinforced steel, so that the front and rear panels are organically connected together. The door is best to have asbestos and other fire, insulation, sound insulation function of the material as a filler. Check whether the lock has been used by the public security department to detect qualified anti-theft special lock, in the lock installation site to strengthen the steel plate to protect. Check the quality of the product, whether there are welding defects, doors and doors with the dense and so on. Weigh the weight of anti-theft door, the amount of regular security door is not less than 40 kg.

Q:Home security key to the keyhole when inserted in the special card astringent, when the pull is also particularly astringent, I do not know how to do

Pour some pencil ash put inside, it will become very smooth, my mother to do so very good use