Ключевые слова: construction site, construction worker, corrosion repair, dirt excavation, excavation, excavation site, excavation tools, hydraulic equipment, hydraulic tools, industrial cylinder, industrial work, labor intensive, maintenance, maintenance operation, maintenance worker, manual labor, manual toolkit, manual wrench, muddy boots, muddy environment, muddy hands, muddy terrain, outdoor repair, pipe installation, pipeline repair, piping system, plumbing, safety gear, safety helmet, safety vest, soil analysis, soil disturbance, soil excavation, subsurface repair, trench excavation, trench work, underground infrastructure, underground maintenance, underground utility, underground work, utility service, valve repair, welding helmet, work gloves, worker hands,