... : 1/2"-72" 2.w.t.: SCH10-SCH160,SGP,STD,XS,XXS, 3.material : ASTM A234 WPB , DIN , JIS, EN10253,GOST ... , SR), 90D(SR, LR), 180DSize1/2"-72"Wall ThicknessSch5-Sch160 XS XXS STDStandardANSI,ASME,API5L,DIN,JIS,BS,,GBMaterialA234-WPB.A420 ... price with BEST quality,hope to build cooperation with you! cs elbow