B-动态压差平衡概念&平衡阀测试2
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-法兰压差平衡阀PN16 阀体采用球墨铸铁的品牌是____
WATTS W-DPBV系列压差阀的优势是_____
Honeywell 压差平衡阀产品具备下面什么特点_____
W-DPBV系列压差平衡阀具备如下哪些特点______
W-DPBV动态压差阀可以屏蔽哪些压差波动______
-下列哪个品牌不具备压力测量嘴_______
TA压差阀产品不具备下列哪种特性______
-如下图所示，排气口采用球阀的优势是_______
Danfoss压差阀不具备下面什么特点_____
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