ygs67 发表于 2015-11-18 14:34:38

ASTM A288-91(R13)

ASTM A288-91(R13) Standard Specification for Carbon and Alloy Steel Forgings for Magnetic Retaining Rings for Turbine Generators

admin 发表于 2015-11-19 10:25:18


谢谢您的分享,金币已奖励!
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