Q41F-1.6P，Q41F-16P，Q41F-2.5P，Q41F-25P，Q41F-4.0P，Q41F-40P，不锈钢法兰球阀
9.6


15.0


3.1


7.8


15.3


2.4


3.8




密封试验


1.8


2.8


4.4

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