Ключевые слова: abstract, aluminum, background, backgrounds, black, circle, construction, cylinder, elements, engineering, factory, frame, gray, group, grunge, industrial, industry, iron, material, metal, metallic, new, objects, pattern, pipe, pipeline, pipes, product, profile, reflection, round, row, shiny, space, stack, stainless, steel, storage, technology, texture, tube, tubes, tubing, water,