本发明涉及液压阀技术领域，具体涉及一种先导式卸荷阀。

The present invention relates to the technical field of hydraulic valve, which particularly relates to a pilot operated unloading valve.

youdao

本发明涉及液压阀技术领域，具体涉及一种先导式卸荷阀。

The present invention relates to the technical field of hydraulic valve, which particularly relates to a pilot operated unloading valve.

youdao