ANSI stainless steel screwed end elbow: casting process threaded (NPT or ... 90/135/180 degree Size: 1/2''-48 ANSI stainless steel 304 screwed end elbow:connection way:threaded (NPT,BSP) ... ASTM,UNI,BS,API,and so on.Material: Carbon steel,stainless steel,alloy steelCARBON STEEL :ASTM A234 WPB, WPC; ASTM A420 WPL9, ... ,tee,reducer,cap,and so on. ANSI stainless steel 304 screwed end elbow with high quality