Ключевые слова: builder, business, checking, construction, contractor, control, employee, employment, engineer, engineering, equipment, factory, foreman, hand, hardhat, helmet, industrial, industry, inspector, job, locomotive, machine, maintenance, man, manufacturing, material, mechanic, metal, occupation, portrait, professional, rail, railroad, railway, repair, safety, service, shake, site, station, steel, technician, technology, track, train, transportation, warehouse, work, worker, workshop,