... " 2.w.t.: SCH10-SCH160,SGP,STD,XS,XXS, 3.material : ASTM A234 WPB , DIN , JIS, EN10253,GOST ... ISO 9001CERTIFICATE.1. BUTT WELDED FITTING:2. Production acc. to the standard of GB /ASTM / ASME / DIN / JISASTM B 16. ... welded -Caps,4. Wall thickness: From Sch5 up to Sch160/STD/XS/XXS5. Material Grades: A403,WP304, ... Seamless: from 1/2' up to 24'7. Welded: From 1/2" up to 72"Packaging Detail: wooden cases ...