Ключевые слова: architecture, build, business, carpenter, city, concrete, construction, corporate, crane, development, engineer, equipment, expertise, exterior, floor, hard, hardhat, helmet, high, improvement, industrial, industry, job, level, location, male, manual, object, occupation, process, professional, project, property, protection, protective, red, safety, scaffold, scaffolding, scape, site, skyscraper, steel, structure, technology, tool, trade, unfinished, work, working,