●The patent of invention of this product is admissible and being accepted by the State Intellectual Property Office.

●The key teeth has four sides with the included angle,total five rows of 38-holes,which sustain the secrecy and inductivity.(Super C-grade with anti technology-opening)

●The special key way design is anti technology-opening. 

●The cylinder will not work and be blocked when the cam be turned 15 degree by technology-opening but not by the true key.

●There are two stochastic hardened springs which could change the random force.

●The top of key has bulit-in locking technology dead pin secure function.

●The cylinder is made by high precision machining,fit with 38 stainless steel marbles.(T-shaped pins and Mushroom-shaped anti-theft pins)

●The plug with modular design can be expanded to different kinds of cylinders.

●The cupronickel key is strictly protected,which is machined by professional equipments and programs,preventing the unauthorized bitting.

●The Master Key System can provide 6 level management and achieve special cross management.