... :ASME,ANSI,BS,etc. 4)material:carbon steel BG Carbon steel 180 Degree Bend sizeSeamless:from 1/2 ... 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, ect)Alloy steel(ASTM A234 WP12,WP11,WP22,WP5,WP9,WP91 ...