1>180 Degree stainless steel elbow 2>Seamless&Welded Steel 3>OD:1/2"-80" 4>WT: ... ASTM A285 Gr.ST37,ST52,,ST35,ST45,S235JR etc)Stainless Steel(ASTM A403 WP304,201,301,304L,309S,310S,316, ... 316L 317L,321,347,430 etc)Alloy Steel(ASTM A234 WP5,WP9,WP11,WP12,WP22,WP91,EP92 ... and Chemical,Nuclear Power Station,Food Making,Architecture,Shipping,Paper and Medicine industry etcIf you have any other ...