... ,AISI,ASTM,GB,DIN,EN,etc. Grade:304,304L,309S,310S,316,316L,316Ti,321,347H,etc. O.D.:6mm-2500mm W.T ... .:1mm~150mm Descriptionstainless steel pipe,steel pipe,steel tube,stainless steel tube ... ,seamless stainlesssteel pipe, stainless steel welded pipeMaterial304,304L,309S,310S,316,316L,316Ti,317L,321,347H,201 ...