... . 2,advanced testing equipment. 3,competitive price . stainless steel pipe 3091.ASTM,DIN,JIS,EN,KS,ASMEASTM (ASME) ... ,316Ti,321,347h,904l201,2023.stainless steel pipe 309 polished,annealing. stainless steel pipe 309 1.Sizes:Diameter:6- ... 40/40S, 80/80S, 120/120S, 160/160S,acc. to ANSI B36.19/36.102. Surface finish: pickling, annealing, manual ... cases or as request. High quality 309 stainless steel pipe