ygs67 发表于 2015-11-18 11:00:34

ASTM E618-07(R13)

ASTM E618-07(R13) Standard Test Method for Evaluating Machining Performance of Ferrous Metals Using an Automatic Screw/Bar Machine

admin 发表于 2015-11-19 10:25:01


谢谢您的分享,金币已奖励!
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