Ключевые слова: abstract, aging, air, backgrounds, blue, bolt, construction, damaged, design, dirty, effect, equipment, factory, frame, fuel, gas, gray, grunge, industry, iron, machine, material, metal, metallic, natural, nobody, nut, obsolete, oil, old, part, pipe, pipeline, plant, plate, process, rivet, rust, rusty, scratched, screw, sewage, sewer, steel, textured, unhygienic, valve, wall, water,