... satisfy comprehensive uses. No.1:Polished with abrasive belt of grit#100-#200,have better brightness with discontinuous coarsestria,used ... utensiles,etc. No.4:Polished with abrasiver belt of grit#150-#180,have better brightness with discontinuous coarsestria,but ... food processing equipment,etc. HL:Polished with abrasiver belt of grit#150-#180,have better brightness with discontinuous coarsestria,but ...