Ключевые слова: architecture, asian, background, belt, build, builder, building, civil, construction, contractor, crane, danger, dangerous, engineer, engineering, equipment, fabricate, factory, height, helmet, high, industrial, industry, install, iron, ironwork, job, labor, male, metal, people, person, professional, protective, repair, roof, roofer, safety, site, skill, spark, steel, structure, team, tool, welder, welding, work, worker, workers,