... steel pipe 1.10#,20#,45#,16Mn, 2ASTM A106 Gr.B, ASTM A53 Gr.B, St 37, St 42, St ... seamless steel pipe 10#,20#,45#,16Mn, ASTM A106 Gr.B, ASTM A53 Gr.B, St 37, St 42, St ... serviceGB/T8163-199910, 20, Q295, Q345ASTM A53-98 ASTM A192 ASME S192 JIS G3452-1998 FIS G3454 ... 15MoG, 20MoG, 12Cr1MoVG, 15CrMoVG, 12Cr2MoG, 12Cr2MoWVTiB, 12Cr3MoVSiTiB,ASTM A106-96a ATSM A213-95a JIS G3461-1988 JIS G3462-1998 ...