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

Should be the problem of the cylinder, another lock cylinder just fine

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

Do the security door business is now bad to do the most anti-theft door business is the most important choice of anti-theft door brand, do security door or fight price, or is to sell the brand, or is a selling point. Maxim is the hope that the three are the characteristics of the brand is the beauty of the brand is more style, the reputation of the more hope is the production process of other home than the fame of the king of the characteristics of the king is a good anti-theft security is good The biggest selling point of the fame is also large (style is more common, that is, looks humble kind of) Landlord want to do security door business depends on you to sell security door focus on where to fight the price to take miscellaneous brand to do. First-class industry to sell brand second-rate enterprises to sell technology third-rate enterprises to sell these prices to the landlord to consider their own

Q:What is the size of the home security door?

Is the nearest real estate, the standard is now 2050 * 960

Q:After the security is not on the game yet? The The

There are usually six or seven. To see what Gong Fu more than the emperor Hao Aoxin Fan tied. Good anti-theft lock has seven keys, a string of seven to stay in the two are installed with the remaining five in a box, which has a manual, five in a different color, with this in the lock Hole turn 360 degrees outside the two keys can not be used again. The keys in the general package are not opened. Otherwise it is not safe. I am doing security door.

Q:Inside the left outside the right outside the right how to distinguish please detail more Thank you more

To the people outside the door, facing the door, the direction of the hinge is the opening of the door. Hinge in the left, outside the open is outside the left, open inside is left.

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

The essential difference is: anti-theft door countries have standard production standard, and steel doors do not need, just do not have qualified small workshops can be processed. Functional differences: anti-theft door with the basic anti-theft + insulation + noise + fire and other functions of the steel door customers decide their own, looking at the pleasing to the eye on it, huh, huh use difference: security door can be used as a household safety barrier steel door can be used Any place where there is no need for safety and security, except for the difference between the wet material: anti-theft door generally use cold-rolled steel plate filled with filler made of steel door you want to do what the line is smooth and open bargain Karma gang tied to burst it, As long as the material is steel :) Price difference: anti-theft door market price of 800-1500 ranging from the size of the steel door size calculation of material costs + artificial on the line do not know what else to think of these, I hope useful to you.

Q:Anti-theft door outsourcing open outside the package with what is the difference

Open the way is not the same, one is the door open, one is opened the door. There is a difference between the expansion of the eye

Q:The sound of the security door is loud

I thought you were talking when it was closed? Very simple, to buy a pimp (strip), 502 glue, go back and stick in the door frame and the door of the door to the paste often know the full version of the side, to ensure that no longer ring!

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

This is easy to do. Take a 2H pencil and hang a lot of pencils with a knife. Use a screwdriver to remove the anti-theft door lock and slowly pour the pencil foam from the keyhole. Gently knock knock knock anti-theft door locks, insert the key with the key repeatedly rotation, until the feeling of flexible rotation so far. According to the original installation can be restored. If you can not dump anti-theft door locks, staring at the jealousy German pet spring can touch the pencil directly into the keyhole can also be, the effect is slightly worse, need to rotate the key several times until the feeling of flexible rotation so far.

Q:What is the unit name of the security door?

According to the requirements to Tang, or square meters for the unit price