And we should design the draw pump?

要设计出来一种自吸泵 呢 ?

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Health stainless steel centrifugal pump, cam rotor pump, a return pump, Self - suction pumps.

不锈钢卫生离心泵 、 凸轮转子泵 、 回程泵 、 自吸泵.

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The marks, performances and dimensions of ZXB self - priming pump adopt international standard ISO 2858 - 1975 .

ZXB型 自吸泵,其标记 、 额定性能点和尺寸等效采用国际标准ISO2858 -1975.

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Then with the right to water in the backwater hole converging flow along the spiral flow.

之后与右回水孔自吸泵流来的水会合,顺着蜗壳流动.

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