How to distinguish the level of Feiyun anti theft door locks

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.

Anti-theft door is generally the first choice for the entrance door of the room, it plays an escort role for the whole home, may all consumers understand that most of the anti-theft performance of the anti-theft door is closed with its lock, indeed most of the anti-theft ability of the anti-theft door comes from the requirements of its locks, and secondly, the impact resistance of the door panel also plays a great role in the anti-theft, because the current anti-theft door generally has a grade, there are A, B, C days of each level, of which the general room installation is mostly A-level, In the process of purchasing an anti-theft door, how can consumers judge whether their locks also meet the requirements of Class A? >>>More

The lock cylinder is standard, but the quality of Feiyun is average. >>>More

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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