23 PORTABLE AIR COMPRESSORS, ROCK DRILLS, AIR TOOLS, DRIFTER DRILLS STOPPING DRILLS, WAGON DRILLS, PORTABLE SELF-PRIMING CENTRIFUGAL PUMPS, [SINGLE AND DUAL DRUMWAD PAVING MACHINES, PNEUMATIC CONCRETE PLACING APPARATUS,TRUCK MOUNTED CONCRETE MIXERS,PORTABLE CONCRETE MIXERS, INDUSTRIAL MIXERS,PLASTER MIXERS, AND BITUMINOUSMIXERS]