Dingxin механической цифровой замок

Mechanical security door digital lock with curve codes Depending on the technique of mechanical safety box digital lock with curve codes, mechanical security door digital lock with curve codes initiates a new security door digital lock specially used in banks or home application. The controllable operation can be realized inside and outside a security door, and the lock needs no keyhole, and needs no key or light when opening the lock; therefore, the safety and convenience of digital locks are further enhanced.