Volute, Pump, Block, Block motor, impeller nut is cast iron, good corrosion resistance, easy processing.

蜗壳、泵座、电机座、叶轮螺母是生铁铸造、耐腐化性较好，加工工艺方便。

youdao

Volute, Pump, Block, Block motor, impeller nut is cast iron, good corrosion resistance, easy processing.

蜗壳、泵座、电机座、叶轮螺母是生铁铸造、耐腐化性较好，加工工艺方便。

youdao