The petal uses the import and export both sides central shaft guidance, opens shuts nimbly, but level installment or vertical installment.

该阀阀瓣采用进出口两端中心轴导向，启闭灵活，可水平安装或垂直安装。

youdao

The petal uses the import and export both sides central shaft guidance, opens shuts nimbly, but level installment or vertical installment.

该阀阀瓣采用进出口两端中心轴导向，启闭灵活，可水平安装或垂直安装。

youdao