1.Standard:AISI,ASTM,GB,JIS 2.Grade:300 series 3.Diameter:10-200mm 4.Surface:Bright 5.ISO Catalog: (Material ... , hot expandAbrasive style:NO 3 surface: 120 #, 180 #NO 4 surface: 240 #, 3,220 #, 400 # HL surface NO 3 surface: 80 #, 120 #, 180 ... : +86-510-854145214) Website: http://www.hld-tech.com 300 series Stainless Steel round bar