... steel pipe 1.10#,20#,45#,16Mn, 2ASTM A106 Gr.B, ASTM A53 Gr.B, St 37, St 42 ... seamless steel pipe 10#,20#,45#,16Mn, ASTM A106 Gr.B, ASTM A53 Gr.B, St 37, St 42 ... , 20MoG, 12Cr1MoVG, 15CrMoVG, 12Cr2MoG, 12Cr2MoWVTiB, 12Cr3MoVSiTiB,ASTM A106-96a ATSM A213-95a JIS G3461-1988 JIS G3462-1998 ... and Medium Pressure BoilersGB3087-199910, 20ASTM A179, ASTM A192 ASTM SA179,SA192, BS3059Seamless Steel Tubes for high ...