ygs67 发表于 2015-6-18 09:46:43

应助：ASTM A522 A522M-13

本帖最后由 ygs67 于 2015-6-18 09:47 编辑

ASTM A522 A522M-13 Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges,Fittings, Valves, and Parts for Low-Temperature Service

求助帖：http://bbs.infoeach.com/forum.php?mod=viewthread&tid=39592&highlight=ASTM%2BA522

admin 发表于 2015-6-23 11:42:13

谢谢您的分享,金币已奖励!
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