The
lock is made of pure - Brass or stainless steel; Dissociative
knob which prevents external destroying press; Coming
by solt-fog experiment that last over 600 hours; Use
Siemens encryption techniques which is counterfeit-preventing;
To Realize the parent-card management: use the parent
card to add or delete the electric key. New-type lock
barrel with smaller size and backlocking;Static function:
d2F Can register 255 exclusive user cards and support
offline network function.
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