wet alarm valve
常見例句
- The ZSFL Pre-action Alarm System is made by equipping the top of the outlet of the deluge alarm valve with a wet-type alarm valve of the same size.
ZSFL預(yù)作用裝置是在本公司生產(chǎn)的雨淋報警閥出水口上端配接一套同規(guī)格的濕式報警閥構(gòu)成的預(yù)作用報警裝置。
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