liuxilin1215 发表于 2014-1-1 08:07:02

IEC 60534-6-1-1997

IEC 60534-6-1-1997 Industrial-process control valves – Part 6: Mounting details for attachment of positioners to control valves – Section 1: Positioner mounting on linear actuators


admin 发表于 2014-1-2 18:36:35

谢谢您的分享，金币已奖励！

asnt2012 发表于 2017-6-23 21:30:22

IEC 60534-6-1-1997 Industrial-process control valves – Part 6:
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