ygs67 发表于 2017-12-14 20:18:01

ASTM D6772 D6772M-16

ASTM D6772 D6772M-16 Standard Test Method for Dimensional Stability of Sandwich Core Material

admin 发表于 2017-12-15 17:49:48

谢谢您的分享，金币已奖励!
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