The anti-theft locking seat manufacturer tells you that the standard safety lock cylinder has been upgraded to B grade and super B grade. When purchasing, choose super B grade.

The anti-theft locking seat manufacturer tells you that before buying a lock, you can judge the quality of the lock cylinder by looking at the number of key teeth. It mainly depends on the structure of the lock cylinder. The blade side column structure is often much better than the traditional marble structure. It's a good time to ask a professional teacher for advice and then choose according to the situation.
The second trick: pick a lock and weigh it by weight, and look at the lock cylinder one by one by weight. Anti-theft locking seat manufacturers tell you that the heavier the weight, the better the quality of the lock cylinder, the more beads in the lock cylinder, the better the anti-theft function.
The third measure: choose the lock cylinder to see the color, and compare the color to the workmanship. The lock cylinder of good quality is electroplated, the surface is smooth and the color is bright. The anti-theft locking seat manufacturer tells you that the dark yellow color is copper core, which is relatively strong and has good anti-theft performance.
The fourth trick: the anti-theft locking seat manufacturer tells you that the anti-theft performance of the key being inserted into the lock cylinder is poor. The locked key means that the anti-theft performance of the lock cylinder is poor, and the smooth insertion of the lock cylinder in the half-rotation state means that the anti-theft effect is good.