Ключевые слова: aerial, architecture, background, bar, build, builder, building, business, cement, civil, concrete, construction, contractor, development, employees, engineer, engineering, equipment, fabricate, fabricating, floor, hand, hardhat, home, house, industrial, industry, instrument, job, lattice, metal, people, professional, progress, project, reinforced, safety, scaffolding, screwdriver, site, slab, steel, structure, structures, under construction, work, worker, workers, workplace, yellow,