本实用新型涉及一种旋转式混凝土泵管接头，属流体的输送装置。

The utility model relates to a rotating concrete pump tube joint, which belongs to fluid transmission device.

youdao

本实用新型涉及一种旋转式混凝土泵管接头，属流体的输送装置。

The utility model relates to a rotating concrete pump tube joint, which belongs to fluid transmission device.

youdao