Ключевые слова: architect, architectural, architecture, background, blue, builder, building, business, concept, construction, design, engineer, engineering, engineers, equipment, foreman, hard, hardhat, hat, health, helmet, industrial, industry, insurance, job, man, meeting, object, office, paper, people, plan, plastic, professional, project, protect, protection, safe, safety, security, site, team, tool, white, work, worker, workman, yellow,