Mack Industries has been making quality precast concrete products since 1932. We provide a broad range of concrete products a ... nd services. Mack Industries originated in Valley City, Ohio. Under the direction of three generations of the Mack family, the company continues to grow in size & scope. Mack has several plant locations and extends its sales to cover a multi-state area including: Ohio, Michigan, Indiana, Pennsylvania, New York, Kentucky, West Virginia, Virginia, Maryland, Florida, North Carolina, Georgia, and Alabama. read more