... porcelain 4.supply from manufacturer FG diamond dental burr for fine polishing Specification:1.FG.Dental Diamond Burrs (shank diaΦ1.6mm,total ... -270# Yellow, super fine cut, V/20-30#3.ISO 9001:2000 Standard Features of our diamond dental burrs:diamond bur, dental bur ... , competitive price and prompt delivery.Contact person:Barbara Chung FG diamond dental burr for fine polishing