凸耳类型阀门配置贯穿整个阀体长度的螺栓连接。

Lug Style valves cover the bolting the entire length of the body.

youdao

凸耳类型阀门配置贯穿整个阀体长度的螺栓连接。

Lug Style valves cover the bolting the entire length of the body.

youdao