GROUSER BARS USED AS REPLACEMENTS ON TRACK SHOES OF CRAWLER TYPE CONSTRUCTION MACHINES; [ ADJUSTABLE HYDRAULIC POWERED MACHINES FOR TRENCH SHORING AND BRACING; ] HYDRAULICALLY OPERATED IMPACT HAMMERS; POWER OPERATED EDGE HARDENED STEEL PAVEMENT CUTTERS AND FORGED OR CAST SHAPED SUPPORTS THEREFOR; PNEUMATICALLY OPERATED UNDERGROUND PIERCING TOOLS; VIBRATORY COMPACTORS; MACHINE PARTS, NAMELY, BOOM MOUNTED GRAPPLES AND SHEARS; BOOM SYSTEMS COMPOSED OF STATIONARY BASE, BOOM, AND STICK USED IN THE MINING INDUSTRY, THE QUARRY INDUSTRY AND FOR MATERIAL TRANSFER APPLICATIONS; HYDRAULIC POWER UNITS FOR CONSTRUCTION MACHINES; AND REPLACEMENT PARTS FOR ALL OF THE AFORESAID GOODS