Ключевые слова: background, build, building, cable, concrete, construction, development, dig, ditch, drain, drainage, electricity, energy, engineering, equipment, excavation, ground, industrial, industry, infrastructure, installation, line, maintenance, manufacturing, new, outdoor, pipe, pipeline, pipes, plastic, plumbing, power, pvc, repair, road, sewage, sewer, site, soil, street, supply, system, technology, trench, tube, underground, water, wire, work,