The lock cylinder is the core component of a lock, responsible for controlling its opening. It employs multiple anti-theft technologies, including various irregularly shaped anti-picking pins and precision numbered pin structures, providing high security against technical unlocking.
Class A: The key is flat or crescent-shaped, with one or both sides having a row of concave keyways or a cross-shaped keyway with convex keyways on all four sides;
Class B: The key is flat or crescent-shaped, with one or both sides having two rows of concave keyways or a cylindrical keyway with multiple concave keyholes;
Class C: The key is flat, with one or both sides having two rows of concave keyways plus S-shaped keyways, or double serpentine keyways inside and out;