Ключевые слова: architecture, background, belt, builder, building, business, cement, civil, concrete, construction, contractor, development, employees, engineer, engineering, equipment, floor, ground, hand, hardhat, helmet, holding, home, house, industrial, industry, inspection, job, man, occupation, people, professional, progress, project, safety first, screwdriver, sign, site, slab, top, top view, under construction, view, work, worker, workers, workplace, yellow,