... -SCH160,XS,XXS 4.Standard: ASTM A234 WPB/WPC 5.Quality:good ProductCarbon Seamless Pipe Size1/2"-72"Wall ThicknessSCH5S-SCH160 ... XXS STDStandardANSI,ASME,JIS,DIN,GB,BS,APIMaterial Carbon steel,Stainless steel,Alloy steelCarbon steel ASTM A234 WPB,WPC;ASTM A420WPL9,WPL3,WPL6 ... ,LOIYDRemarkAlso can supply IBR fittings and Specialized NAME&HIC Fittings High Quality Q235 Straight Seam Steel Pipe