ygs67 发表于 2017-12-8 08:52:25

ASTM D5420-16

ASTM D5420-16 Standard Test Method for Impact Resistance of Flat, Rigid Plastic Specimen by Means of a Striker Impacted by a Fal

admin 发表于 2017-12-12 15:52:28

谢谢您的分享，金币已奖励!

734408311 发表于 2019-9-20 16:07:53

谢谢您的分享，刚好需要。:lol:lol:lol
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