Vitrified bond, double disc, surface diamond grinding wheel , diameter380-1200mm , be suitable in double side or single side grinding machine and be used for high precision of lapping or polishing 1.Longer tool life , 20% -40% higher than others. 2.Effective grinding, good in self-sharping, low in heating, uneasy to be blocked, easy grinding action. 3.The most professional advice for you. Our technicist have abundant professional experience. 4.Prompt delivery., one weeks after receiving 30% advance remittance 5.Make as you required. 6.OEM accepted.