Ключевые слова: bolted, complex, construction, control system, distribution, energy, engineering, engineering design, equipment, facility, factory, fittings, fluid, hardware, heavy, industrial, industrial environment, industrial equipment, industry, infrastructure, machinery, maintenance, manufacturing, mechanical, mechanics, metal, metallic, metallic sheen, metalwork, oil, operation, petrochemical, pipeline, pipes, plant, precision, pressure, processing, production, refinery, robust, steel, system, technology, transport, tubing, water supply,