Ключевые слова: background, banner, builder, business, calendar, card, celebration, closeup, concept, construction, date, day, equipment, event, figure, freedom, greeting, happy, hard, holiday, idea, industrial, industry, international, isolated, job, labor, labor day, laboratory, labour, maintenance, male, man, may, metal, miniature, model, national, people, repair, safety, service, small, space, success, table, work, worker, workers, workman,