Door Cylinder Biased Lock 65 70 80 90 115mm AB Key Anti-Theft Entrance Brass Lengthened Core Extended Keys(80(40-40))

Door Hardware & LocksNstructions for the Use of A.B LocksA.B lock is a special type of anti-theft lock designed with the theme of safety.1. B key is provided for house decoration workers.2. A key is encapsulated in plastic package. Before the house is decorated and finished, the owner should not try to open it with A key, so as not to cause unnecessary trouble.3. After the decoration of the house is completed, the owner accepts it for the sake of completeness. Take back the B key in time, and then insert the A key into the lock core to rotate 360 degrees, the B key will automatically fail.Name: Copper lock core for burglar-proof door

• Door Hardware & Locks
• A.B lock is a special type of anti-theft lock designed with the theme of safety.
• 1. B key is provided for house decoration workers.
• 2. A key is encapsulated in plastic package. Before the house is decorated and finished, the owner should not try to open it with A key, so as not to cause unnecessary trouble.
• 3. After the decoration of the house is completed, the owner accepts it for the sake of completeness. Take back the B key in time, and then insert the A key into the lock core to rotate 360 degrees, the B key will automatically fail.
• Name: Copper lock core for burglar-proof door