... steel,A234 WPB,WPC,WP11 3.standard:ASME/JIS/DIN/EN/ST/GOST 4.Got the ISO 9001 A106 steel ERW ... ,polishing.1.Our Product Range (pipe fittings) : 180 Returns 90 and 45 Elbows , Concentric Reducers,Eccentric Reducer, Tees, Caps,Flanges. BW ... , stainless steel,duplex,as per ASTM, ANSI, JIS, DIN and GB standards. 2.WH:sch 10---SCH160, XXS3.material;carbon steel, stainless ...