offset disc burerfly valve
... 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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eccentric butterfly valve
... 凸耳式lug type 偏疼阀板蝶阀offset disc burerfly valve；eccentric butterfly valve 斜阀盘蝶阀canted disc butterfly valve ...
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