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Anonymous users2024-01-24Dear, you can find the requirements of the relevant anti-theft door locks in the national mandatory standard of GA T 73-94 "General Technical Conditions for Mechanical Anti-theft Door Locks" and GB21556-2008 "General Security Technical Conditions for Locks", which are used to produce Class B locks. The requirements are very detailed.
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According to the national standards, the Class A door must be locked with Class B, but it is not clear that it is Super Class B (because Class B is not recognized by the national standard, and the relevant national standards only recognize Class A and Class B), especially the requirements of the current standard are alternative, good and bad, so this must not be answered. But if you send a picture, you should be able to judge.
Class B cylinders are superior to Class A cylinders. As for whether the thief can open it outside, there are probably several situations: the technical one who knows how to open the "cable" knowledge and essentials can be opened in a few minutes; Non-technical thieves are generally not pohuai, and the "rope" cannot be opened. >>>More
Since April 1, the new national standard for anti-theft doors GB17565 2007 "General Technical Conditions for Anti-theft Security Doors" standard has been officially implemented. Compared with the old standard, the new standard strictly regulates the safety level of the security door, the thickness of the door frame and the number of locking points. >>>More
The root model is equipped with Baodean crescent lock, and the small handsome Manshen super B-level lock cylinder is mainly You can pay attention to the purchase when you buy the door. >>>More
Class A lock: At present, the Class A anti-theft lock key on the market mainly includes a word key and a cross key. The internal structure of the A-grade lock cylinder is very simple, limited to the variation of the pin, and the marble groove is few and shallow. >>>More