ASTM C39 2015
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- เผยแพร่เมื่อ 19 ก.พ. 2016
- This video is published by the courtesy of TECHTRAINING llc. This video is current as of 2015. The video reviews ASTM C 39: Determining the compressive strength of cylindrical concrete specimens. To view other products by TECHTRAINING llc please visit www.techtrainingllc.net