Ключевые слова: abstract, aged, backdrop, background, bar, brown, cell, closeup, construction, corrosion, dark, design, durable, expanded, fence, grate, grid, grill, grille, grunge, hardware, heavy, hole, industrial, industry, iron, lattice, material, mesh, metal, metallic, old, orifice, pattern, plate, rough, rust, rusty, sheet, square, stack, steel, strength, structure, surface, technology, texture, textured, tough, wire,