... :301,302,304,310,321,316,316L 3.CertificateISO 316l stainless steel round bar Surface: Bright or black Grade:301,302,304,310,321,316,316L delivery time ... :201,202,301,302,304,310,321,316,316Lsurface:hot rolled/cold draw/mirror surface Standard:JIS, AISI, ASTM, GB, DIN, ENMaterial:TP201/202/301/304/321/316/316L/ ... :www.qinyuansteel.com Application Presentation:ISO9001:2008 316l stainless steel round bar