Ключевые слова: abstract, background, chip, closeup, copper, curly, drilling, ecology, engineering, environment, factory, filing, garbage, heap, heavy, industry, iron, machine, macro, manufacture, manufacturing, material, metal, metallic, metalwork, milling, production, recycle, recycling, rubbish, scrap, sharp, shaving, shiny, spiral, steel, swarf, texture, trash, waste,