Ключевые слова: architect, architecture, build, builder, building, business, cap, city, concrete, construction, contractor, danger, employee, engineer, engineering, equipment, factory, foreman, hard, hardhat, hat, head, headgear, headwear, helmet, industrial, industry, job, maintenance, male, management, manufacture, manufacturing, plan, prevention, professional, project, protect, protection, protective, safe, safety, security, tool, wear, work, worker, workman, yellow,