... are fit grind materials of all kinds, such as universal steel and gerveral alloy stell. It can be used to ... ,40#,46#,54#,60#70#,80#,90#,100#,120#,150#,180#,220#,240#P grits for Coated Abrasives14# ,16#,20#,22 ... ,40#,46#,54#,60#,70#,80#,90#,100#,120#,150#,180#,220#,240#Refractory0—1mm,1—3mm,3—5mm,5—8mm ... ,8—12mmFines for refractory180 Mesh,200 Mesh,325 Mesh91%—93% Al2O3, 94%—95% Al2O3 we ...