... :ASME,BS,GOST,eg seamless pipe fittings,45/90/180 degree elbow sizeSeamless:from 1/2" to 24"Welded ... customer requirements)degree22.5 deg, 30deg,45 deg,90 deg,180 deg, 1.0D, 1.5D, 2.0D, 2.5D ... SCH140, SCH160, XXSstandardASME B16.9, ASME B16.25, MSS SP-75 DIN2605 JISB2311 JISB2312 JISB2313, BS, GB, ISOmaterialCarbon steel (ASTM ... Elbow Chemical Analysis seamless pipe fittings,45/90/180 degree elbow