Ключевые слова: 1, america, american, background, banner, builder, canada, card, celebrate, celebration, concept, construction, day, design, engineer, equipment, happy, happy labor day, hardware, helmet, holiday, independence, industrial, industry, international, job, july, labor, labor day, labour, male, man, may, national, patriotic, people, person, professional, safety, symbol, team, teamwork, tool, usa, wooden, work, worker, workshop,