Ключевые слова: abstract, aluminum, background, black, bright, circle, clean, color, construction, cylinder, dark, engineering, equipment, fiber, gray, group, hollow, horizontal, industry, iron, line, long, manufacturing, material, metal, metallic, modern, new, object, pattern, people, perspective, pipe, pipeline, plastic, profile, row, science, shape, shiny, silver, spring, stainless, steel, technology, tube, twocolor, water,