Ключевые слова: abstract, background, black, building, bunch, carbon, chrome, circle, closeup, construction, cut, cylinder, design, diminishing, duct, equipment, gas, group, heavy, industrial, industry, iron, manufacture, manufacturing, material, metal, metallic, natural, objects, oil, perspective, pipe, pipeline, pipes, piping, round, shiny, silver, stack, stacked, stainless, steel, strength, technology, tube, tubing, warehouse, water, white,