Ключевые слова: background, black, blue, circle, circular, collection, connect, construction, crimping, cut, danger, electrician, electricity, element, engineer, equipment, hand, handle, industrial, industry, installation, instrument, iron, isometric, job, machine, maintenance, manual, mechanic, metal, object, one, power, professional, repair, service, set, standing, steel, studio, technical, technology, telecommunication, tool, work, worker, workshop,