Cleaning, polishing, scouring and abrasive preparations; nonwoven and flexible abrasive cloth; abrasive products in the nature of abrasive belts; abrasives in the nature of abrasive rolls; abrasive preparations for polishing; polishing paper; polishing stones; tripoli stone for polishing; abrasive granules in the nature of ceramic and aluminum oxide grains used as polishing, scouring and abrasive preparations; abrasive sand; diamantine for use as an abrasive; silicon carbide for use as an abr...