... sharpening,better cutting,less heat emit,higher efficiency,acid and alkali resistance,good thermal stability.Abrasives tools made ... also can be used as materialsfor grinding and polishing,precision casting,spaying and coating, medium body for chemical industry, ... 1500# 2000#,2500#,3000#,4000#Refractory grade:1-0mm,3-1mm,5-3mm,5-8mm -200mesh,-240mesh,-320mesh PurposeSpecificationChemical Composition(%) ...