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Lab Name City State
R. K. Hall Construction, LLC Texarkana Laboratory Texarkana AR
R. K. Hall Construction, LLC De Queen Laboratory De Queen AR
R. Thompson, Inc. Hamburg Laboratory Hamburg AR
Razor Rock Materials Company Harrisburg Laboratory Harrisburg AR
Robertson, Inc. - Bridge & Grading Robertson, Inc. - Bridge & Grading Laboratory Strawberry AR
Rogers Group Inc. Greenbrier Laboratory Greenbrier AR
Rogers Group, Inc. Cabot Laboratory Cabot AR
Rogers Group, Inc. El Paso Laboratory El Paso AR