Ключевые слова: abstract, aged, aluminum, antique, background, black, circle, cogwheel, concept, design, dirty, engine, environment, equipment, factory, gear, grunge, hard, heap, heavy, industrial, industry, iron, machine, material, mechanical, mechanism, metal, metallic, motion, old, part, recycle, recycling, rough, rubbish, scrap, stack, steel, strong, surface, technical, technology, texture, tool, transmission, trash, vintage, wallpaper, wheel,