ASTM WK39777(What is a Work Item? / How to Input to a Work Item)Work Item: ASTM WK39777 - Revision of C1621 / C1621M - 09b Standard Test Method for Passing Ability of Self-Consolidating Concrete by J-RingActive Standard: C1621 / C1621M - 09b Developed by Subcommittee: C09.47 | Committee C09 Home | Contact Staff Manager
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