ygs67 发表于 2015-11-18 10:58:11

ASTM A745_A745M-15

ASTM A745_A745M-15 Standard Practice for Ultrasonic Examination of Austenitic Steel Forgings

admin 发表于 2015-11-19 10:24:59


谢谢您的分享,金币已奖励!
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