90 deg seamless bend 1,8" 2,STD 3,A234WPB 4, ... "( or as customer requirements)angle22.5 deg, 30deg,45 deg,90 deg,180 deg, 1.0D, 1.5D, 2.0D, 2 ... .5D, 3D,4D,5D,6D,7D-40D.thicknessSCH10,SCH20,SCH30,STD SCH40 ... , papermaking, construction, etcSpecial design available as the requirement of customer 90 deg seamless bend