... ,digit lock,luxury door lock,waterproof lock,Chinese lock,electronic security lock. Simple yet decent, feel natural. Complex structure is against ... steel.5.Low voltage alarm,stable quality.6.Professional manufacturer in China,OEM design avaiable. l By RF Card, Keypad/Code, Mechanical ... -latches: Back locking by pulling the handle upward.safe and security.l Add or delete the common users at will.l ...