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Anonymous users2024-01-24Not all anti-theft locks can be replaced inside and outside, first of all, some special models such as Baodean 11 type, Wang Li Tene, old-fashioned security locks can not be exchanged inside and outside, universal gourd locks, there are some brands that can, there are some can, test method: in the case of rotating 360 degrees with the B key, the A key can still be opened, then it can not be replaced. This is the indoor end.
At present, the mainstream of the anti-theft door on the market is the two lock cylinders of grade A and grade B, the main difference between these two cylinders is that the key of the grade B lock cylinder has a serpentine groove, while the class A lock does not.
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
Fire and security door refers to the function of the door, in order to isolate the fire source in the general shopping mall, many goods are equipped with fire and security doors in the middle.
Yes, the super B-grade diamond blade lock cylinder used by Dedun, double row of twelve blades, internal compacted square side post lock, the amount of keys reaches 16 million, the internal lock cylinder adopts explosion-proof design, when the violent prying, twisting the lock, the core design of the keyhole effectively decomposes the torsion force, and completely resists the shear force generated by the violent picking.