Ключевые слова: adult, adults only, architect, architecture, building contractor, building exterior, business, carpenter, closeup, communication, construction industry, construction site, construction worker, danger, engineer, engineering, equipment, facade, factory, focus on foreground, foreman, headwear, horizontal, house, industry, installing, man, manager, manual worker, metal, occupation, occupational safety and health, people, professional occupation, protection, repairing, roofer, rooftop, safety, sky, stainless steel, steel, teamwork, technician, technology, thailand, uniform, work helmet, working,