Elbow 90 lr elbow 90 SR elbow 45 LR Specification standards standards ANSI b16.9; jis b2311/2312/2313; din 2605/2615/2616/2617;gb13401/12459 Material 304/304l , 316/316l , 321 , 31803 , 317l Thickness SCH10S, SCH20, STD, SCH40, XS, SCH80, XXS, SCH160 Etc. (For ANSI); SGP (For JIS) Size 90 deg. Lr 1/2"--48" 90 deg. Sr 1"--24" 45 deg. Lr 1/2"~48" Wood case