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詳細介紹
Model 522
Description
The Model 522 Series Differential Pressure Indicating Switch is a compact,
weather resistant device for challenging DP Applications and installations.
It is suitable for use in outdoor and “Hose Down“ applications. The Rolli
Description
The Model 522 Series Differential Pressure Indicating Switch is a compact,
weather resistant device for challenging DP Applications and installations.
It is suitable for use in outdoor and “Hose Down“ applications. The Rolli
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