Ключевые слова: abstract, alloy, aluminium, armor, background, brown, brushed metal, canvas, corrugation, defence, design, factory, fence, fixed, industrial, industry, iron, material, metal, metal background, metallic, metallic background, rough, row, shell, shield, siding, steel, striped, structure, surface, texture, textured, toughness, tread, vertical, wall, wallpaper,