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污水经过隔油和沉淀处理，还算比较干净，转子泵也是容积泵啊，相对来说便宜一些吧
转子泵是容积泵 转子泵比潜污泵贵
还有什么材质的橡胶可以用？
看水温，丁腈橡胶最大能耐受八十度，还有氢化丁腈橡胶，可以耐受沸水。
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