... :Carbon Steel: ASTM A234WPB,WPC;ASTMA420 WPL9, WPL3, WPL6A; ST 37.2 Q235, A105,A106,20#,etcStainless Steel: ASTM A403 WP304/304L ... S32760 Standards:JIS,GB,BS,DIN,ASME ,ANSIASME/ANSI B36.10-1996, ASME/ANSI B16.9-1993, ASME/ANSI B16.28-1994ASME/ANSI ... B 16.5, ASME/ANSI B 16.26 ...