grade synthetic diamond powder is the higher grade synthetic diamond ,this grade diamond powder feasures better diamond crystalline shape and stronger mechanical retention,it used for better quality synthetic diamond grinding tools, MBD synthetic diamond also can meets the customer's demand on precision tooling and electroplated diamond applications. 35 /40, 40/45, 45/50, 50/60,60/70, 70/80,80/100,100/120、120/140、140/170、170/200、200/230、230/270、270/325、325/400、400/500, 500/600