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      齒輪泵
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      • NCB型內嚙合齒輪泵
        NCB型內嚙合齒輪泵結構特點:該泵采用內嚙合原理,內外齒輪節圓緊靠一邊,另一邊被“月牙板’二隔開,齒輪同向轉動,無困液現象,結構先進,體積小,流量大,噪音低,壽命長。
      好大好爽好硬我要高潮了
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