1) Type: ANSI/API 3D ELBOW BEND 52) Size: NPS 1/2"-120"(DN15- ... CO.,LTD.PRODUCT TYPEANSI/API CS 3D ELBOW BEND, ASTM A106 GR B ELBOW BEND, ASTM A234 WPB ELBOW BEND, API 5L GR B ... , SCH20/40/80/160, STD/XS/XXS, SGP…….MATERIALcarbon steel: ASTM A234 GR WPB , ST37.2 , ST35.8……alloy steel: A234 ... /TP321 , WP310/TP310…..STANDARDANSI B 16.9/ANSI B16.49/API/MSS/JIS/DIN etc…we can also produce according to ...