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The lock cylinder is standard, but the quality of Feiyun is average.
There is a good lock cylinder.
Golden dot atom. Baode An Buyang.
Millipro and other brands are all good, Meilibao double-row anti-dial lock cylinder is better, and the cost performance is relatively high
If it is C-type, you should use the key head in the regular key (a different one from other key handles) to turn the lock cylinder 360 degrees, and in normal operation, the decoration key can not be used
There are many universal ones, but it is best to use the original one, and the original one is genuine.
The vast majority of anti-theft door cylinders are universal, but the length needs to be measured when replacing them, because the thickness of the door is different, so the length of the lock cylinder is different.
The size of the lock cylinder of the anti-theft door, if you have a strong hands-on ability, you can remove it and measure it, based on the distance between the middle screw hole and the two keyholes, of course, if you are troublesome, you can simply measure it, as shown in the figure below, you only need to measure L1 + L2. >>>More
You can open it with a key inside.