Vertical three-screw pump internal simple and compact structure, high efficiency, strong self-priming capacity, energy saving effect is good;

立式三螺杆泵内部结构简单紧凑，效率高、具有很强的自吸能力、节能效果好；

youdao

Vertical three-screw pump internal simple and compact structure, high efficiency, strong self-priming capacity, energy saving effect is good;

立式三螺杆泵内部结构简单紧凑，效率高、具有很强的自吸能力、节能效果好；

youdao