Double Flanged Butterfly Valve 是什么
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DoubleFlangedButterflyValve是什么DoubleFlangedButterflyValve是什么DoubleFlangedButterflyValve是什么就是对夹式的蝶阀,也
Double Flanged Butterfly Valve 是什么
Double Flanged Butterfly Valve 是什么
Double Flanged Butterfly Valve 是什么
就是对夹式的蝶阀,也可以叫做 WAFER Butterfly Valve .
Double Flanged Butterfly Valve 是什么
请问有谁知道Double-sphere Flanged Rubber flexible Joint,中文的!
英语翻译double flanged water meter pressure switch with isolating cock pressure gauge with isolating cock double air relief valve with isolating gate valve double flanged dimantiling pieceflanged flap valve
英语翻译Double Rotatable Flanged Reducers,in cast iron,with approved epoxy coat,including necessary tasks and fittings for control of the Water Supply
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