Ключевые слова: abstract, backdrop, background, black, board, brown, building, business, closeup, construction, design, detail, dirty, engineering, equipment, factory, frame, gray, grid, grunge, hard, heavy, holes, industrial, iron, larger, machine, material, metal, old, panel, part, pattern, piece, plate, power, rust, rusty, screw, shadow, sheet, silver, steel, structure, surface, technology, texture, vintage, wall, white,