Ключевые слова: architect, architecture, background, ban, blue, blueprint, builder, building, business, civil, concept, construction, contractor, crane, design, development, engineer, equipment, estate, foreman, group, hardhat, helmet, high, industrial, job, line, maintenance, male, manager, occupation, person, professional, project, protective, safety, silhouette, site, sky, structure, sunset, team, teamwork, technology, urban, worker, working,