andykidd 发表于 2016-1-21 09:17:14

ASTM C747-10

ASTM C747-93(2010)e1 Standard Test Method for Moduli of Elasticity and Fundamental Frequencies of Carbon and Graphite Materials by Sonic Resonance

ygs67 发表于 2016-1-21 09:17:15

已上传：http://bbs.infoeach.com/forum.php?mod=viewthread&tid=102974&extra=

andykidd 发表于 2016-3-2 16:11:49

继续求助，谢谢大家~~~~~~~~~~
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