Ключевые слова: bathroom, black, connector, construction, design, drain, drainage, element, engineering, equipment, faucet, fitting, flange, fuel, gas, home, icon, illustration, industrial, industry, isolated, line, metal, oil, outline, part, pipe, pipeline, piping, plastic, plumber, plumbing, pressure, pump, repair, service, set, sewer, sewerage, sign, steel, supply, symbol, system, tap, technology, tube, valve, water,