Detailed Product Description Seamless steel tubeStainless steel seamless pipes:Standard: ASTM A312, A213 Grade: TP304, TP304L, TP316L, TP321, ... - 20 inch, W.T:SCH5S, SCH10S, SCH40S, SCH80S, SCH160, or Non-regular size to as requested.Length: Specific or Random.Packing ... , FOB.Mill certificate: EN 10204.3.1 welcometo contact me for more details.