1.ASTM A106/A53 GR.B 2.Outer diameter:10.3-914.4mm 3.Wall ... : GB8163, ASTM A106/A53/API 5L(2) Material: 10#, 20#, 16Mn, A106Gr.A/B/C,(3)Specification: O.D: 21. ... 3mm-711.2 mm(4) W.T: 2.11mm-59.54mm Technical ... -95 GB9948-88ASTMA335/A335MASTMA213/213MDIN17175-79JISG3467-88JISG3458-8816-824*2-100The seamless steal pipesfeatures resistance to high pressure, high ...