GB GENERAL BREAKER

cranes; earth moving machines, namely, excavators; electric hammers; mine borers; road construction machines, namely, machines for breaking and scraping earth, rock, concrete, asphalt or other pavement; weeding machines, namely, power operated tools in the nature of lawn and garden edgers and weeders; pistons for cylinders for excavators and road construction machinery; air compressors; air springs other than for vehicles, being structural parts of machines; valves as machine components