...alve series of brass) 截止阀 (Globe valve) 软密封蝶阀 (Solf seal butterfly valve) 伸缩蝶阀 (Flexible butterfly valve) 通风蝶阀 (Aeration butterfly valve) 卧立两用球面止回阀 (Check valve) 信号蝶阀 (The signal butterfly valve) 一体式高...
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expansion throttle valve 伸缩式节流阀 Expansion Butterfly Valve 伸缩蝶阀 expansion词组短语 ..
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