Ключевые слова: actuator, adapter, boiler, conection, connect, construction, control, cooling, ductile, energy, engineering, equipament, fastening, fitting, gas, heating, hydraulic, industrial, industry, iron, machine, mechanic, metal, oil, pipe, pipeline, piping, plumber, plumbing, pneumatic, pressure, service, system, tool, tube, valve, water, work, worker, wrench,