7 Electric polishing machines used in polishing sheet material, countertops, vanities, benchtops, tables, furniture, and floors; electric machines for carpet shampooing; electric machines for cleaning sheet material, countertops, vanities, benchtops, tables, furniture, and floors; electric machines for surface finishing; electric machines for burnishing sheet material, countertops, vanities, benchtops, tables, furniture, and floors; electric machines for sanding surfaces; electric parquet polishers