zure1972 发表于 2015-7-24 13:26:34

ASTM F2328-2014

ASTM F2328-2014
Standard Test Method for Determining Decarburization and Carburization in Hardened and Tempered Threaded Steel Bolts, Screws, Studs, and Nuts

admin 发表于 2015-7-27 09:50:53


谢谢您的分享,金币已奖励!
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