muti function astm a269 فروش داغ
ASTM A269/A269M, 2022 Edition, November 1, 2022 - Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service This specification covers grades of nominal-wall-thickness, stainless steel tubing for general corrosion-resisting and low- or high-temperature service, as designated in Table 1.