Abrasive belts for power-operated sanders; Abrasive disks for power-operated grinders; Abrasive disks for power-operated sanders; Abrasive wheels for power-operated grinders; Brushes being parts of machines; Flap discs for power-operated grinders; Kits comprised of sandpaper sheets configured to fit power-operated sanders; Sanding machines for woodworking; Sanding pads for power-operated sanders