... -910mm 4.High quality Vitrified bonded combined for PCD wheel grinding The vitrified wheels are made of diamond or CBN, the ... the parts of Motor, Bearing, Semi-conductor, Glass, Optics, Metal, Ceramic, PCD/PCBN, etc1. Diameter from 75mm, 100mm, 125mm, 150mm, 160mm ... 2) Glass and optical glass 3) Stone, concrete, asphalt and ceramic 4) Magnets 5) Other deep manufacturing industries