STANDARD:ASTM,GB,JIS,DIN ,EN,KS ect. GRADE:304,304L,309S,310S,316,316L,316Ti,321,347H,ect O. ... -150MM STANDARD:ASTM,GB,JIS,DIN ,EN,KS ect.GRADE:304,304L,309S,310S,316,316L,316Ti,321,347H,ectO.D ... ~150mmLength12m,11.8m6m,5.8m,4m or as your requirement 304 stainless steel pipe