... -XXS 3)Standard:ASME,ANSI,BS,etc. 4)material:carbon steel BG Carbon steel 180 Degree Bend sizeSeamless:from 1/2" to 24"Welded:from ... MSS SP-75 DIN2605 JISB2311 JISB2312 JISB2313, BS, GB, ISOmaterialCarbon steel(ASTM A234WPB,,A234WPC,A420WPL6. 20#,Q235,10#,20#,A3, Q235A ... , 20G,16Mn, ect)Stainless steel(ASTM A403 WP304,304L,316,316L,321. 1Cr18Ni9Ti, 00Cr19Ni10,00Cr17Ni14Mo2 ...