... vitrified wheels are made of diamond or CBN, the products can be used for the parts of Motor, Bearing, Semi-conductor, Glass ... 75mm, 100mm, 125mm, 150mm, 160mm, 175mm, to 910mm. 2. Shape can be any shape as per customer machine and macining demands. Common choosed ... , 9A3 and so on 3. Diamond or CBN grain size can be from rough to fine, 30#, 50#, 60#, 80#, 100#, 120 ...