夹石棉织物的橡胶 elastomer with asbestos fabric insertion 偏心阀板蝶阀 offset disc burerfly valve; eccentric butterfly valve 阀芯(包括密封圈、杆等内件) trim ..
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... Indined disc butterfly valve 斜板式蝶阀 ; 斜板式 offset disc burerfly valve 偏心阀板蝶阀 ; 偏疼阀板蝶阀 disc valve 圆盘阀 ; 圆板阀 ...
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... 凸耳式 lug type 偏爱阀板蝶阀 offset disc burerfly valve; eccentric butterfly valve 斜阀盘蝶阀 canted disc butterfly valve ...
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