Ключевые слова: architecture, background, builder, building, concrete, construct, construction, constructionsite, craftsman, crane, development, engineering, equipment, factory, frame, helmet, high, house, industrial, industry, iron, job, labor, laborers, male, man, manual, metal, occupation, outdoor, people, person, project, protective, safety, scaffold, scaffolding, scene, site, steel, structure, technical, tools, urban, work, worker, workman,