Product: Stainless Steel Socket Weld Flanges: SUS304/ SUS316 Carbon Steel Socket Weld Flanges Standard: JIS5K Flange, JIS10K Flange, JIS20K Flange, ANSI 150 Flange, ANSI 300 Flange Size: 3/ 8 " , 1/ 2 " , 3/ 4 " , 1 " , 1 1/ 4 " , 1 1/ 2 " , 2 " , 2 1/ 2 " , 3 " , 3 1/ 2 " , 4 " , 5 " , 6 " , 8 " , 10 " , 12 " , 14 " , 16 " , 18 " , 20 " , 22 " , 24 " ~ 60 "