Everyone loves an upgrade. Coach to first class; compact car to luxury; standard room to a suite. Sometimes, such a simple act can result in immeasurable returns of customer loyalty for the generous business. But when King Sand and Gravel purchased a new classifying tank from KPI-JCI, the upgrade they got was far more than they could have expected. Kind Sand and Gravel was started by Jerry King back in the early 1980s. Primarily a strip-mining op

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