One end of the windpipe is connected with a unidirectional inflatingvalve.
气管的一端与单向充气阀连接。
2
The vacuum freshness preservation box comprises a box body, a cover body, an inflatingvalve and an air pumping valve.
真空保鲜盒包括盒体,盖体,充气阀和抽气阀。
3
The alarm air valve can be directly installed on the inflatingvalve of an automobile tyre, and has simple structure, convenient installation and low cost.