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Anonymous users2024-01-231. The appearance is different
In appearance, the AC key is generally red, the B key is blue, and there is a small notch at the front of the C key.
2. Use differently:
In terms of the order of use, key A can be used before and after the failure of the insurance function, and key B is provided for the installer. When the installation is completed and accepted, as long as the C key is inserted into the lock cylinder and rotates 360 degrees, the B key will automatically become invalid, and the AC key can be used as usual. AB is actually the key used by the homeowner, after the house is renovated, the general AB key is in the package, the A key is without a plastic handle, the C key has two, and the B key has 3 to 4, so there are still a lot of spare.
>3. Different forms:
Class A locksAt present, the main types of Class A anti-theft lock keys on the market are slotted keys and cross keys. The internal structure of the A-grade lock cylinder is very simple, limited to the variation of the pin, and the marble slot is few and shallow. The anti-technical opening time is within 1 minute, and the mutual opening rate is extremely high.
The marble structure is a single row of marbles or cross locks.
B-level lockB-level lock key is a flat key, with a double row of bullet slots, and the difference with A-level locks is that there is an extra row of curved and irregular lines on the key surface. There are 3 main types of lock cylinders, computer double-row lock cylinders, double-row crescent lock cylinders, and double-sided blade lock cylinders. The anti-technical opening time is within 5 minutes, and the mutual opening rate is high.
With the help of a strong twist tool, the lock cylinder can be opened in less than 1 minute.
The shape of the C-level lock key is a single-sided blade inner milling groove, an external milling groove key or a double-row + blade form, and the lock cylinder type is a side post lock cylinder, which cannot be technically opened after 270 minutes of detection by the Ministry of Public Security, and the regional mutual opening rate is zero (1 in 16 million). The bullet structure is a double-row blade with V-shaped side post locking; If the lock cylinder is opened with a strong twist tool, the inside of the lock cylinder will be damaged, and it will self-detonate and lock, resulting in the inability to open.
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Anonymous users2024-01-22C key is the decoration key, AB is the key used by the homeowner, after the house is renovated, the homeowner uses the B key to start the lock cylinder, so that the C key is invalid, generally the AB key is in the package, the A key has no plastic handle, the C key is only two, and the B key is 3-4!
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Anonymous users2024-01-21You see if there are 3 different colors of the key in your house, it is very simple, there are ABC, and there are 2 kinds of AB.
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Anonymous users2024-01-20The AC key is generally red, the B key is blue, there is a small gap at the front end of the C key, the A key can be used before and after the failure of the insurance function, the B key is provided to the installation workers to use, after the installation is accepted, as long as the C key is inserted into the lock cylinder and rotates 360 degrees, the B key will automatically fail, and the AC key can be used as usual. AB is actually the key used by the homeowner, after the house is renovated, the general AB key is in the package, the A key is without a plastic handle, the C key has two, and the B key has 3 to 4.
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Anonymous users2024-01-19Decoration Da Cui talks about unlocking the core grade discrimination, and hopes to help you in decoration.
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Anonymous users2024-01-18The two handfuls outside the hanging package are B, the one with a notch on the tip of the package is one handful, and the other four handfuls are C
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Anonymous users2024-01-17rol chemicals and fumi
The anti-theft door has ABC3 kinds of keys, and the A key is used when decorating the decoration is completed and the C key is used to screw 360 degrees in the opposite direction The A key can not be used, and only the B key can open the door to the door key Divine Thought. (There is a description of the difficulty of the manuscript behind the key when handing over the room). >>>More
At present, according to the "Mechanical Anti-theft Lock" standard issued by the public security department in 2015, the anti-theft door is divided into three levels, A-level lock, B-level lock, and C-level lock, and the anti-theft performance from A-level to C-level is getting higher and higher. The differences between Class A, B, and C keys are as follows: >>>More
Nothing has an impact. My family has been using A and B keys for many years. It's normal that you haven't upgraded all the time.
Yes, because the B key was used by the construction workers.,You can't use it after using it.,Or you don't feel at ease.。。 And the A key needless to say, you use it, of course you can open it, the C key doesn't understand much... It should also be possible ...
Usually a security door has 2 A keys, 5 B keys, and 1 C key. The A key, also known as the "worker's key back", is used by workers during renovation. Answer: At the end of the decoration, use the C key to turn around in the lock, the A key will automatically become invalid, and you can only use the B key to open the door. >>>More