Ключевые слова: abstract, air, assembly, backdrop, background, bench, bender, brass, channel, circuit, communication, cooling, copper, engineer, engineering, equipment, fitter, fitting, flaring, hose, industry, instrument, line, locksmith, manufacturing, measurement, metal, montage, mounting, pipe, pipeline, pipework, piping, plumbing, rammer, semimanufactures, system, table, tool, tube, tubing, water, work, workbench, workspace,