... 90/135/180 degree Size: 1/2''-48 ANSI stainless steel 304 threaded end elbow :22.5/45.90.135/ ... ,ASTM,UNI,BS,API,and so on.Material: Carbon steel,stainless steel,alloy steelSTAINLESS STEEL : ASTM A403 WP304/304L, WP316/316L, WP321, ... ,eg. forged steel elbow,forged steel tee,forged steel cap,forged carbon steel reducer,forged carbon steel tee,forged carbon steel cap,forged carbon steel elbow,and so ...