Secret lock-cartridge for lock 60 mm with 6 keys

Secret lock according to DIN standard TOPSTRONG with dimensions 60 x 33 x 17 mm. The lock cartridge is made of high quality brass, has a brass rotor and high-level security pins.
The secret lock has been tested in laboratory conditions, showing efficiency even after 130,000 unlocking and locking cycles.
The brass lock cartridge is available with 6 keys for it, made of special wear-resistant steel.