Ключевые слова: abstract, background, choke, construction, crude, drill, drilling, duct, energy, equipment, factory, filter, flow, fuel, gas, gauge, industrial, industry, information, line, liquid, machinery, metal, meter, mixing, oil, old, petroleum, pipe, pipeline, power, pressure, production, pump, retro, rig, rusted, rustic, rusty, sign, siphon, steel, symbol, tank, transfer, tube, tubing, valve, vintage, water,