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ygs67 发表于 2015-12-23 16:16:48

ASTM E213-14e1 Standard Practice for Ultrasonic Testing of Metal Pipe and Tubing

ASTM E213-14e1 Standard Practice for Ultrasonic Testing of Metal Pipe and Tubing

admin 发表于 2015-12-23 17:20:46

谢谢您的分享，金币已奖励!

aaaaaaaaa717 发表于 2016-2-2 11:34:38

楼主，下载标价太高了，没有那么多金币啊！！

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