Abrasive disks for power-operated grinders; Abrasive disks for power-operated sanders; Concrete finishing machines; Drilling machines and parts therefor; Floor cleaning machines; Floor polishing machines; Grinding tools for grinding machines; Grinding and polishing machines; Pads for floor polishing machines; Polishing discs for automated wet-polishing multi-head machines; Power-operated abrasive wheels; Power-operated grinding wheels; Power-operated tools, namely, grinders; Precision machine...