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Anonymous users2024-01-24In the latest national standard "General Technical Conditions for Anti-theft Security Doors", the anti-theft level of anti-theft doors is divided into: A, B, C, D four levels.
The door frame should be selected mm and mm respectively according to the level of anti-theft safety B, C and D.
The thickness of the outer and inner panels of the door leaf is expressed in the form of "outer plate and inner plate", and the grades B, C and D of anti-theft security are respectively distinguished. Choose mm mm, mm mm, mm mm
According to the latest national standard BAI "Anti-theft Security Door with Technical Provisions", the anti-theft level of the anti-theft door is divided into four levels: A, B, C, and D. >>>More
The "A" on the security door indicates the security level. The security level of the security door is divided into A, B, C, D, four types, the security level is from high to low, "A" level does not mean that it will not be stolen, but it means that once it is opened abnormally, it takes the longest time at this level. >>>More
If they're open, take the cylinder off, and use the pliers to turn the cylinder key and try to take it out, and you can give it a try.
On behalf of the sewage pipes below, septic tanks or something, you look for the property to ask, not every community is the same, not to mention the problem of random changes, you will be fined, safety is also a problem, you look for property consultation.
If there is a large gap in the upper part of the door, you can raise the door a little as a whole, put something under the door frame, and then put waterproof glue. >>>More