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Anonymous users2024-01-24Security doorThe anti-theft level is stamped on the door frame on the hinge side, and the upper part of the middle of the first and second is counted from the top, and the steel seal is clear.
So the security doors are all the same.
More than 2000 can buy Grade A doors, Grade A door panels, standard door panels, door frames, locks, and locks are different from each manufacturer. There are four levels of security doors: "A, B, C, and Dong The best grade should be marked in the form of a steel seal on the door leaf or door frame. >>>More
My family has been using Wang Li to prevent and leak the door, Wang Limen is the first brand in China's door industry. Good quality!! The after-sales service is also very considerate!! I bought it at the Hailstorm and the service was very welcoming. It is a recommended product of the Public Security Bureau. >>>More
1180, I just installed it last month.
Choose Fuxi Grade A Door ,,。 Wang Li's Class A and Class B are all scum.
The new "General Technical Conditions for Anti-theft Security Doors" (GB17565-2007) according to the length of anti-vandalism time, plate thickness and other indicators, the anti-theft door products are divided into anti-theft security levels, the anti-theft security level from the original "C", "B", "A" 3 levels, increased to "A", "B", "C", "D" 4 levels, the corresponding pinyin letter codes are "J", "Y", "B", "D", A is the highest level, and so on. "A", "B", "C", "D" anti-theft door door frame and the number of locking points between the door leaf can not be less than 12, 10, 8 and 6 respectively, the thickness of the steel plate of the door frame is 2mm, 2mm, and, anti-vandalism time can not be less than 30 minutes, 15 minutes, 10 minutes and 6 minutes respectively, the technical requirements of the above-mentioned indicators for the anti-theft security door have been greatly improved on the basis of the original standard.