2157| 5
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油的比重為0.9,向上輸送20米,,油泵選型哪個(gè)好 |
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點(diǎn)評(píng)
去市場(chǎng)上買個(gè)離心泵,揚(yáng)程比輸油高度大點(diǎn)就行,,很便宜
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