Ключевые слова: background, ball, brass, bronze, butterfly, close, closeup, connection, connector, construction, control, copper, crane, engineering, equipment, faucet, fitting, flow, gas, gold, golden, handle, industrial, industry, installation, isolated, liquid, metal, new, object, pipe, pipeline, piping, plumber, plumbing, repair, side, steel, stopcock, supply, system, tap, technology, thread, tube, valve, view, water, white, yellow,