... /201/202 ,SS904L,S32750,2205,Duplex ,Titanium,Titanium alloy and others . 2) Standards: ASTM A312/A269/A213/SAE 789/ SAE 7903) O.D ... ApprovalsBV, DNV, LR,GL,ABS, NK, KR, CCS. Stainless steel tube: Features:STANDARDS: AISI,ASTM,DIN,JIS,GB,GOST,ENGRADE :201,301,304/TP304 ...