应助:ASTM C747-93(2010)e1
本帖最后由 ygs67 于 2016-3-3 11:41 编辑ASTM C747-93(2010)e1 Standard Test Method for Moduli of Elasticity and Fundamental Frequencies of Carbon and Graphite Materials by Sonic Resonance
求助帖见:http://bbs.infoeach.com/forum.php?mod=viewthread&tid=100615&pid=536791&page=1&extra=#pid536791
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