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GB/T 12220-2015

2019-06-05View Original

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Does anyone have the GB/T 12220-2015 standard? Please upload it, thanks!
Reply #22019-06-05
https://bbs.hcbbs.com/thread-2721648-1-1.html GB-T 12220-2015 Industrial Valves – Marking
Reply #32021-03-24
Thank you, big brother! Good stuff, officially needed.

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