ygs67 发表于 2015-11-18 14:36:25

ASTM A289_A289-97(R13)

ASTM A289_A289-97(R13) Standard Specification for Alloy Steel Forgings for Nonmagnetic Retaining Rings for Generators

admin 发表于 2015-11-19 10:25:20


谢谢您的分享,金币已奖励!
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