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Anonymous users2024-01-24The quality of the anti-theft door locks is generally okay, there is no problem, and there is no very garbage.
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Anonymous users2024-01-23Yes, I agree with the brand of Ronglong, and the locks in our community are all produced by her family, but I don't know if there is a lock cylinder.
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Anonymous users2024-01-22It is still the reliability of Ronglong, and the Ronglong manufacturer has been professionally produced for 23 years, and it is very reassuring to use.
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Anonymous users2024-01-21No one can guarantee this kind of reliability. Because the lock is the lock gentleman's, never lock the villain.
There is no contrast between the brands, what you want to compare is miscellaneous brands, and there are the same things as the brand!
The anti-theft level of the anti-theft door is divided into: A, B, C, D four levels. According to the provisions of the national standard GB17565-2007, it is divided into four levels: A, B, C, and D, and the corresponding anti-theft time limit is 30 minutes, 15 minutes, 10 minutes, and 6 minutes. >>>More
The key of the security door is 2+6 or 2+5 as standard
Are you going to buy this kind of lock or this kind of door?
It is important to prepare for winter before the onset of winter in the alpine regions of our country. When the temperature difference between indoor and outdoor is large, the convection of cold and hot air will cause the lock cylinder to be damp. Therefore, you can put two drops of antifreeze oil on it before winter, and then add some gasoline to clean it after the winter passes. >>>More