Ключевые слова: agenda, background, badge, business, card, cartoon, celebration, construction, contractor, day, design, employers, employment, engineer, engineering, equipment, freedom, gear, greeting, group, helmet, holiday, illustration, industrial, industry, international, job, label, labor, labor day, labour, marketing, mechanism, national, poster, power, revolution, safety, symbol, team, tool, tools, work, worker, workers, wrench, yellow,