Product:ASTM A106 Gr.B/ X45/X52/X60 Seamless Steel Tube Size:1/2"-32"*sch5-sch160 XXS Standard:ASTM JIS GB Payment ... STEEL PIPEASTM/ASMESEAMLESSA/SA53 GR.BA/SA106 GR.B,A/SA106 GR.CAPISEAMLESSAPI 5L-B, X42, X52, X56, X60, X65JISSEAMLESSSTPG370, STPG410, ... , C60, C65 etc..A134-A283, A134-A285 etc..APIWELDEDAPI 5L-B, X42, X52, X56, X60, X65JISWELDEDSTPG370, STPY400, STK400, STK490KSWELDEDSPPS38, SPPLOW ...