Ключевые слова: africa, african, blocks, brick, bricklayer, build, builder, building, building supervisor, career, carrying, construction, contractor, development, engineer, foreman, green reflective traffic safety jacket, hard hat, hardhat, heavy, helmet, house, housing, industrial, industry, job, labor, laborer, lifting, male, measurement, men, nigerian, occupation, one person, outdoors, outside, people, personnel, professional, protective, safety, site, skill, staff, strong, uniform, work, worker, workplace,