1. size: 1/2"-48" 2.w.t.: SCH10-SCH160,SGP,STD,XS,XXS, 3.material : ASTM A234 WPB , DIN , JIS, EN10253, pipe fittingcarbon steel TEES:ISO 9001CERTIFICATE.1. BUTT WELDED FITTING:2. Production acc. to the standard of GB /ASTM / ASME / DIN / JISASTM B 16.9 /16.11 B 16.28 JIS B 2311/2220 DIN2617/2616/2615/23913. Types: elbow, seamless and welded, LR & SR ,Bend -Equal and reducing Tees,seamless and ...