Standard and Specification 1Size Seamless stainless tube Welded stainless tube ODmm WTmm ODmm WTmm 6762 170 152020 180 2Standard Item Standard Stainless round bar GB/T1220-2007 size SH3405-96 HG 20553-93 Seamless stainless tube GB/T14976-2012GB13296-2013ASTM A312 ASTM A213ASTM A269JIS G3459JIS G3463DIN 17456 Welded stainless tube GB/T12771-2008GB/T24593-2009ASTM A312ASTM A358 Packing & testing GB/T2012-2006
