Blades for power saws; Blades for power tools; Blades for electric rotary cutting machines; Circular saws; Machine parts, namely, blades; Machines and machine tools for the cutting and forming of materials; Polishing system for use in single-head machines comprising grinding and polishing discs for stone profiling and edges; Power-operated saws; Power saw blades; Power tools, namely, tile saws; Power tools, namely, drills, routers, circular saws