Ключевые слова: abstract, ball, bearing, chemistry, circle, closeup, concept, corrosion, detail, deterioration, dirt, focus, grease, grunge, heap, hole, industrial, industry, iron, job, lubrication, macro, manufacturing, metal, oil, old, part, physics, pile, raw materials, recovery, recycling, roll, round, rusty, scrap metal, secondary, stack, steel, technology, unstable, waste, workshop, worn,