304 Stainless Steel Round Bar 1.Standard:AISI,ASTM,GB,JIS 2.Grade:200,300,400 series 3.Diameter:6-360mm Stainless Steel Round Bar 1) Grade : 321 ... , 304, 304L, 316, 316L, 317, 317,310S 2) Processing ... /ASME/DIN/JIS and etccertificateISO,SGS,and third part inspection. 304 Stainless Steel Round Bar