Abrasive wheels for power-operated grinders; Components for machines and machine tools, grinding machines, material handling machines, food processing machines, chemistry processing machines and textile industry machines, namely, sand, chemical and reverse osmosis filters; Grinding and polishing machines; Grinding tools for grinding machines; Polishing system for use in single-head machines comprising grinding and polishing discs for stone profiling and edges; Power-operated abrasive wheels; Power-operated grinding wheels; Rotary grinding machines; Tool grinding machines; Wheel adapters for power-operated grinders; Wheels being parts of machines; with all of the aforementioned made with or materially comprised of industrial diamonds