flange valve
... 夹具 fixture 凸缘阀 flange valve 转板,襟翼 ,翼形舱盖 flap ...
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凸缘铜阀 flanged brass valve
管阀凸缘 flange of valve
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只需增加底座和阀盖之间的凸缘，就可以简单的调节到您理想的高度。
Simply build your enclosure to the desired height by adding standard size expansion collars between the base and the cover.
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