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Tech. Sgt. Michael Martin (right), a heavy equipment operator assigned to the 386th Expeditionary Civil Engineer Squadron, uses a trowel to flatten minor ridges and holes, as well as the embed aggregate particles in concrete at an undisclosed location in Southwest Asia, Sept. 8, 2017. This process brings a smoother "cream" consistency to the concrete surface for a final finish. (U.S. Air Force photo by Tech. Sgt. Jonathan Hehnly)
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