Ключевые слова: adult, background, builder, building, business, construction, contractor, deconstruction, electric, electrical, electrician, electricity, engineer, engineering, equipment, factory, hand, hard hat, hardhat, helmet, holding, holding helmet, industrial, industry, inspector, maintenance, male, man, management, manager, people, person, production, professional, protection, protective, safety, safety equipment, security, service, sky, supervisor, technical, technician, technology, white, work, worker, workers, yellow,