... ,rock, leather,rubber,etc.It is also broadly used as refractory material and metallurgical additive.Abrasives gradeGrit size: 16#,20#,24#30 ... #,2500#,3000#,4000#Refractory grade:1-0mm,3-1mm,5-3mm,5-8mm -200mesh,-240mesh,-320meshPurposeSpecificationChemical Composition(%)Magnetic material content(%)maxAbrasives gradeSICminF ...