... /B16, 11/B16.28, DIN2605-2642, JIS, and ISO4) Material: ASTM A234 WPB, carbon steel5) Surface treatment: transparent oil, rust-proof ... oil6) Nominal wall thickness: Sch5s, 10s, 20s, 40s, Sch10, 20, 30, 40, 60, 80, 100,120, 140 ... , 160, STD, XS, XXS, and SGP7) Packing: in veneer cases ASTM Elbow(JT-CBW006)