Robots for use in industry; machines and machine tools for treatment of materials and for manufacturing, namely, electric and pneumatic sanders and polishers and corresponding accessories in the nature of sanding pads for power-operated sanders, abrasive discs for power-operated sanders, abrasive belts for power-operated sanders, and polishing discs for poishing machines for paint preparation and finishing in the fields of automotive, plastics, furniture, musical instruments, marine, and airc...