astm a269 با کارایی بالا با کیفیت قابل اعتماد
Designation: A269/A269M − 15aStandard Specif i cation forSeamless and Welded Austenitic Stainless Steel Tubing forGeneral Service 1This standard is issued under the f i xed designation A269/A269M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision.