Thread: CHICAGO | NEMA Chicago | 896 FT | 81 FLOORS
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  #852  
Old Posted Aug 15, 2017, 10:29 PM
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KWILLSKYLINE KWILLSKYLINE is offline
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Join Date: Aug 2016
Location: Chicago
Posts: 625
I wonder if it's less dense or something to make it easier to maneuver the rebar at a different time.