Ключевые слова: aged, aging, black, bolted, chain, chrome, circular, connection, corrosion, coupling, diesel, energy, engineering, equipment, facility, factory, flange, fuel, gas, gasoline, gate, gear, handle, industrial, industry, iron, locked, machine, manufactory, manufacturing, metal, nut, old, outlet, pipe, pipework, pump, red, rust, silo, steel, stopper, storage, supply, switch, system, tube, valve, welded, wheel,