... ; 4, ISO 9001:2000 Certified. Vitrified bonded CBN/ Borazon Wheels for Double Disc Surface GrindingDouble Disc Grinding WheelsDouble disc grinding ... with the grinding occuring on the faces of the grinding wheels. Some typical appliations include the grinding of connecting rods, ... and lifters,brake pads,brake rotors,clutch plates,piston rings,universal joints,and bearings. These are applicable to a wide ...