Ключевые слова: actuator, aluminium, black, boiler, chemistry, drain, drainage, duct, engine, equipment, factory, fitting, flange, fluid, foil, heat, hot, insualtion, insulation, machine, machinery, material, metal, mill, netflow, old, paperindustry, pharmaceutical, pipe, piping, plant, plumbing, producing, production, rusty, sewage, sewer, solenoid, stainless, steam, steel, supply, technology, treatment, tube, utility, valve, water, white,