Ключевые слова: abstract, alloy, aluminum, backdrop, background, blank, board, border, check, construction, design, frame, gray, grid, grunge, hard, hole, industrial, industry, iron, material, mesh, metal, metallic, modern, net, old, page, panel, pattern, plate, round, shape, sheet, shine, sign, silver, space, square, steel, surface, technology, template, texture, tile, vivid, wall, wood,