A-class lock cylinder

- Mar 04, 2019-

A-class lock cylinder

At present, the A-level anti-theft lock key on the market mainly has a word key and a cross key. The internal structure of the A-class lock cylinder is very simple, limited to the change of the marble, the marble groove is small and shallow, and the marble structure is a single row of marbles or a cross lock. The destructive opening time is not less than 15 minutes, and the technical opening time is 1 minute, and the mutual opening rate is extremely high.