Ключевые слова: activity, architecture, attached, backgrounds, boom, business, cable, chain, concepts, connection, construction industry, construction machinery, construction site, crane construction machinery, crane equipment, danger, development, elevator, engineering, equipment, factory, grappling hook, hanging, heavy, hoisting, holding, hook, industry, iron metal, link, machine part, machinery, metal, metallic, objectsequipment, picking up, pulley, pulling, render, rope, security, silver colored, silver metal, steel, steel cable, strength, toughness, work tool,