Ключевые слова: architect, architecture, background, blue, build, builder, business, color, concept, construction, contractor, employment, energy, engineer, engineering, equipment, factory, floor, hard, hardhat, hat, head, headgear, health, healthy, helmet, industrial, industry, inspection, job, maintenance, plan, plastic, prevention, project, protect, protection, protective, safe, safety, security, site, structure, team, tool, white, work, worker, workman, yellow,