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SPDT Thread Paddle Type R3/4 Liquid Water Oil Flow Sensor Switch Automatic Control 15A 250V HFS-20: Amazon.com: Industrial & Scientific
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Stainless Steel Digital Explicit Magnetic Water Flow Switch - China Flow Switch, Water Flow meter | Made-in-China.com
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Pump Water Oil Liquid Gas Control Flow Switch - China Water Flow meter, Flow sensor | Made-in-China.com
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DN10 oil flow switch is used in oil return pipelines to detect flow changes for protection of of different type compressors - AliExpress
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