Ключевые слова: abstract, background, blue, chips, copper, curly, cut, cutting, environment, fabrication, garbage, gray, heap, heavy, industrial, industry, iron, lathe, machine, machinery, manufacture, manufacturing, material, metal, metallic, milling, pile, production, recycle, recycling, rip, rubbish, scrap, sharp, shavings, shiny, silver, spiral, steel, swarf, technical, technology, texture, trash, waste, white, work, workshop,