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标题: ASTM A290-2015 [打印本页]
作者: wanderer1997 时间: 2015-11-10 23:59:53 标题: ASTM A290-2015
[attach]86729[/attach]
ASTM
A290/
A290M-05(2015) Standard Specification for Carbon and Alloy Steel Forgings for Rings for Reduction Gears
作者: admin 时间: 2015-11-11 09:52:32
谢谢您的分享,金币已奖励!
作者: greentea2014 时间: 2015-11-15 12:57:10
感谢楼主分享
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