Ключевые слова: african american, alone, aluminium, architect, attractive, builder, building, building contractor, built structure, business building, closeup, constructing, construction, construction industry, construction site, construction worker, deck, electrician, engineer, equipment, examining, expertise, foreman, hard hat, helmet, house, housing development, industrial, industry, installer, installing, instructor, job, male, men at work, metal, multiracial, new construction, object, occupation, professional, protection, safety, scaffold, scaffolding, work tool, working, young adult,