Seamless Pipe ＆ Tube StandardASTMA312, A213, A376, A789, A790, A376, A249, EN10217-7-2005, GB14976-2002, GB13296-2009, JIS G3459-2004, JIS3463-2006, etc Place of OriginChina Brand NameHexion Steel GradeS30200(302), S30300(303), S30403(304), S30451(304N), S31603(316), S31603(316L), S32100(321), S30500(305), 316Ti, 317L, S34700(347), 347H, 310S, S43000(430), S43020(430F), S40840(409Cb),...