... depressed center grinding wheel: With unique technology, formula and first class production equipment, we manufacture varieties of grinding disk ... stone, cast iron, leather, ordinary metal, carbon, steel, and steely alloy, weld seams, etc.3. Usage of depressed center ... seams, cast iron, stone etcDetailed specification for cutting and grinding wheels Depressed Center Grinding WheelsSize(mm)InchPcs/ctn( ...