Ceramic bond diamond, CBN honing disc is used for fine grinding of bearing end faces, piston rings, gaskets, spacers, compressor parts, semiconductor materials, magnetic materials, cutting tools, blade pump stators, rotors, blade end faces, precision springs, etc. Grinding wheel specifications are 100~ 1600mm. The number of parts processed by each group of grinding wheels is 500000~ 1500000. Roughness: Ra0.05μm to Ra0.2μm, flatness 2μm, < 2μm. Dimensional error between single disc parts is 1~ 2μm.