Ключевые слова: background, blue, build, builder, building, busy, china, concrete, construction, day, development, developments, elements, equipment, formwork, frame, group, hat, helmet, high, house, industrial, industry, infrastructure, installation, large, male, manual, men, metal, occupation, occupational, people, plan, platform, profession, project, safety, scaffold, scaffolding, silhouette, site, sky, steel, structure, sunlight, sunset, tool, worker, working,