1: Material:SS316L,316,316Ti,304L,304,301,201,etc; 2: Standard:ISO,DIN,3A, SMS,BS,BPE,IDF 1:Item : welded pipe,stainless steel pipe ,sanitary ... stainless steel welded pipe2: Material : stainless steel ( SS316L316316Ti304L304301201 ,etc )3: Standard : ISO , DIN , 3A ...