bucket of an excavator, bulldozer on a construction site

excavator dozer workplace tractor shoveling tarmac hook hydraulic track manipulator builder chassis diesel gear lorry bulldozer power occupation reconstruction earthmover damage demolition grader roadside industrial repair restoration job digging covering weight workspace truck roadwork contractor construction bucket pavement assistance road backhoe hard installing debris freight pneumatic masonry loader transmission concrete slab site apparatus applying mechanical parts definite function together performing task