... carbon steel BG Carbon steel 180 Degree Bend sizeSeamless:from 1/2" to 24"Welded:from 24" to 96"( or as customer requirements)angle22.5 deg ... , 30deg,45 deg,90 deg,180 deg, 1.0D, 1.5D, ... JISB2311 JISB2312 JISB2313, BS, GB, ISOmaterialCarbon steel(ASTM A234WPB,,A234WPC,A420WPL6. 20#,Q235,10 ... A3, Q235A, 20G,16Mn, ect)Stainless steel(ASTM A403 WP304,304L,316,316L,321 ...