This valve USES a piston gas cell, its internal is a closed gas-container and lower end is a piston.

该阀采用活塞气囊式内部为密封的容气腔。

youdao

This valve USES a piston gas cell, its internal is a closed gas-container and lower end is a piston.

该阀采用活塞气囊式内部为密封的容气腔。

youdao