Ключевые слова: abstract, alloy, aluminum, background, blue, chrome, construction, dark, dirty, grate, gray, grid, grille, grunge, hole, industrial, industry, iron, material, metal, metallic, nanotechnology, panel, pattern, perforate, plate, repetition, research, seamless, shiny, silver, solid, stained, steel, surface, technology, textured, wall, wallpaper,