Companies Serving Ohio   Name Home Office Online Resources  1. Hydraulic Press Brick Company- Haydite Structural Indianapolis,IN TEK Manual Technical Details    2. Oldcastle APG Atlanta,GA TEK Manual Technical Details    3. Cemex, Inc. Houston,TX TEK Manual    4. Oberfield's Inc. Concrete Products OH TEK Manual Technical Details    5. Lehigh Cement Company Allentown,PA TEK Manual Technical Details    6. Reading Rock Inc. Cincinnati,OH TEK Manual    7. Quik-Brik Atlanta,GA TEK Manual Technical Details