Ключевые слова: abstract, attachments, auger, background, backhoe, bladed, brand, circular, combine, construction, conveyor, corkscrew, cylinders, diggers, drillbit, drillingmachine, edges, endless, equipment, feed, grunge, harvester, helical, helicoidal, industrial, industry, machinery, metal, new, part, pipes, reamer, red, road, rusted, sewer, soil, spare, spiral, spirals, steel, tools, worm,