Ключевые слова: adapter, bolt, brass, building, closeup, concept, connection, connector, construction, coupler, coupling, detail, engineering, equipment, fitting, gas, gold, golden, hydraulic, industrial, industry, installation, join, metal, metallic, nipple, notes, object, part, pipe, plumber, plumbing, repair, sanitary, set, steel, surface, thread, tool, tube, union, vertical, water, yellow,