Ключевые слова: background, building, caliber, circle, closeup, connection, connector, construction, copper, drain, engineering, equipment, fitting, fittings, galvanized, gray, grey, group, image, industrial, industry, iron, isolated, line, metal, metallic, objects, pipe, pipeline, pipes, plastic, plumbing, profile, pvc, round, screw, service, shiny, silver, stack, stainless, steel, system, technology, texture, thread, tube, tubes, water, white,