liuxilin1215 发表于 2014-1-1 08:01:41

IEC 60534-3-3-1998

IEC 60534-3-3-1998 Industrial-process control valves – Part 3-3: Dimensions – End-to-end dimensions for buttweld, two-way, globe-type, straight pattern control valves


admin 发表于 2014-1-2 18:36:46

谢谢您的分享，金币已奖励！
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