Q341F-1.6P，Q341F-16P，Q341F-2.5P，Q341F-25P，Q341F-4.0P，蜗轮浮动法兰球阀|产品总汇|无锡市昌林自动化科技有限公司手机版

Q341F-1.6P，Q341F-16P，Q341F-2.5P，Q341F-25P，Q341F-4.0P，蜗轮浮动法兰球阀
对焊端

GB/T12224

ANSI B16.25

试验和检验