liuxilin1215 发表于 2014-1-1 08:00:46

IEC 60534-3-2-2001

IEC 60534-3-2-2001 Industrial-process control valves – Part 3-2: Dimensions – Face-to-face dimensions for rotary control valves except butterfly valves


admin 发表于 2014-1-2 18:36:50

谢谢您的分享，金币已奖励！

asnt2012 发表于 2017-6-23 21:24:56

IEC 60534-3-2-2001 Industrial-process control valves – Part 3-2:
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