7 HEAVY EARTHMOVING, CONSTRUCTION, AND MATERIAL HANDLING MACHINERY-NAMELY, TRENCHERS, EARTH BORING EQUIPMENT INCLUDING EARTH AUGERS, BITS AND REAMERS, FROST CUTTERS, BACKFILL BLADES, BACKHOES, CABLE PLOWS, CRUMBERS, CLAMPON FORKS, PORTABLE ENGINE DRIVEN WATER PUMPS, HYDRAULIC AND PNEUMATIC COMPONENTS THEREFOR