When the tyre central deflation system is not used, the tyre inflation or deflation can be realized through the air valve and the use of the car will no be affected.
在不使用轮胎中央充放气系统的状态下，可以通过气嘴向轮胎进行充气或放气，不影响整车的使用。
2
The arrangement of the safety valve makes the barrel body form zero load when the tyre pressure reaches the set value.
设置安全阀可使得在轮胎压力达到设定值时，筒体形成空载。
3
The alarm air valve can be directly installed on the inflating valveof an automobile tyre, and has simple structure, convenient installation and low cost.