Механическая блокировка паролем / кодовый замок

Mechanical password lock/ code lock function synopsis: Keystroke function: 12 buttons, including 10 number keystroke and 2 letter keystroke. Special key—button “C”, eliminate misinput, easily use. Numeral key—choose 4-7buttons to set the password in 11 keystroke except button “C”. Change code function: basic on the customers’ need , one should change password,7buttons most one time, but not overlap. Security function: exactitude design, preciseness structure, mechanism motion. With strict trial ,it can still work normally after 50000 times opening. Possess security and secrecy Applying function: fit for every opening direction and locale, high adaption ability. Often use at home door, garage door, office, classroom, storeroom, dormitory, safety box and so on.