Q:What is the filler inside the security door

Anti-theft door filling are: honeycomb paper rock wool polyurethane foam foil. Depending on the level of the security door and the use of different, the filling of different substances.

Q:Try not to hurt the door to the best, which professionals told me how to change? More

Hair dryer while pulling with a hair dryer side

Q:We are downstairs unit security door intercom and home lock is broken, the guests can only throw down the key, I feel very impolite, I now have a window connected to the first floor of the 8-core cable, can use this line I would like to unlock this set is not very understanding, whether the first change, and then access to the lock? What is the principle of unlocking? As long as the key can be unlocked at home on the line, right Do not need to say, and shouting twice on the line.Want to delay the trough of the river of tea right to have a reasonable person to speak a little thorough, the more simple the better, I dry electrician, how much a little knowledge of the circuit. More

The end of the electric lock is actually an electromagnet, which controls a simple mechanical device to carry the door switch. However, the action of the electromagnet is through a series of instructions. When the occurrence of uncontrollable, the first measurement of the voltage to the electromagnet, while the input switch door instructions (some for the electromagnetic card, and some input

Q:My house is located on the edge of the stairs, out of the other does not affect the consideration of the installation of anti-theft door when installed to open the door to the room, but the decoration master and her husband are generally open to the outside, no one installed to open I would like to ask this will affect the house feng shui it? If the feng shui inside and outside the bad can be how to resolve? More

Yes, the general is open to the fire safety considerations because the fire when the fastest speed of evacuation, the door must be pushed rather than opened.

Q:Hooply lock, there are three types of keys A, B, C, how to make the decoration key effective. Question added: Under normal circumstances, the use of C key to make A failure, C can use it? More

A, B, C three types of keys, how to make the edge of the fork late melon gypsum insects sleep chu fine decoration key failure. A key is decorated with a key and other decoration after the owner of the acceptance of the C key will be inserted into the keyhole rotation 360 ° (both off the A key for security in the use of A key to open once to ensure that the real failure) B key normal use of A key completely void

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

Small-scale operation, to find the industry-related industry leaders pull a good relationship, talk about favorable conditions Related industries: decoration, construction team, real estate business, welding shops, do not neglect the industry's small employees, such as nanny, water maintenance workers , And so on the large-scale operation: you can recruit clerks, so that they run the business, to the commission on the line, especially part-time construction workers, you are mainly government departments Shanghai floating high spring 薨 mang for the Kun, education sector, Urban construction, public security, and so seemingly unrelated industries, but their words, you can let your industry on the peak, they are a large number of buyers and sellers fan

Q:How to remove the white paint on the anti-theft door

With the letter that water is banana water can

Q:How do you deal with the theft of the door switch?

With the home of the vegetable oil added to the door (chain) on the line

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.

Q:The sound of the security door is loud

1, first look at both sides of the door where the mill then release the hinge screw out there do not OK2, a person put the door hard to lift up, and then another person in the hinge axis wiping butter, if the ring, then have to tune hinge, Do not find a good job to find a special installation of anti-theft door master to tune you, as long as the door itself is not deformed or quality problems can be done