Two, by the structural constraints of the structure to do the following Path DN200 valves, valve plates are the reasons for the overall structure of thick, large flow resistance.
受结构条件的限制该结构不适应做通径DN200以下阀门，原因是阀板整体结构太厚，流阻大。
Two, by the structural constraints of the structure to do the following Path DN200 valves, valve plates are the reasons for the overall structure of thick, large flow resistance.
受结构条件的限制该结构不适应做通径DN200以下阀门，原因是阀板整体结构太厚，流阻大。
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