ygs67 发表于 2016-4-14 14:18:07

ASTM D6491-09

ASTM D6491-09 Standard Practice for Evaluation of Aging Resistance of Prestressed Prepainted Metal In a Dry Heat Test

admin 发表于 2016-4-14 16:33:21

谢谢您的分享，金币已奖励！
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