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August 28, 2014

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Attendees walk about a mixer above them from a Stertil Koni lift during the 40th anniversary of the World Of Concrete event at the Las Vegas Convention Center on Wednesday, Jan. 22, 2014.

L.E. Baskow

Attendees walk about a mixer above them from a Stertil Koni lift during the 40th anniversary of the World Of Concrete event at the Las Vegas Convention Center on Wednesday, Jan. 22, 2014.