1) China stainless steel pipes/tubes 2) ASTM,AISI,DIN,EN,JIS 3) TP304,TP304L,TP321,TP316,TP316L, ... , 2207(S32750); 904L(N08904)etc. StandardsAISI,ASME,ASTM A 213,ASTM A269,ASTM A312,ASTM A450,ASTM A789,ASTM A790,JIS G3459,JIS G 3463, EN10216 ... ,etcStandardsDIN2391,DIN2445,DIN1629,DIN1630,DIN73000,DIN2445,EN10305,JIS G3445,ASTM A106,ASTM A179,ASTM A519,etc.Delievery ConditionNBK(+N), GBK(+A), BK(+C ...