A bolt on a lock that is moved by turning the key or knob without activation of a spring.
一种锁闩，在没有弹簧的作用下，靠转动钥匙或把手使它移动。
2
In order to improve the security and reliability of lock, a microcomputer code lock actuated by SMA spring is developed.
为了提高锁的安全性和可靠性，设计了一种基于形状记忆合金螺旋弹簧驱动的微电脑密码锁。
3
Solenoid or manual operation, press the button and rotate manual operation can achieve a state of lock manually. Reset pneumatic spring, mechanical spring reset, reset electromagnet operation.