aovtvan 发表于 2018-10-26 10:46:40

求标准ASTM A249/A249M


shukesan 发表于 2018-10-26 10:46:41

ASTM A249/A249M-18
http://bbs.infoeach.com/forum.php?mod=viewthread&tid=200957&fromuid=128592

松雨霞 发表于 2018-11-8 11:12:54

http://bbs.infoeach.com/thread-200957-1-1.html
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