Features: 1) Stainless steel flange and carbon steel flange 2) Standard: ASME, ANSI, API, JIS, JPI... We can supply all kinds of flanges with good quality and prices.Features:1) Size:1/2" ~ 64".2) Standard: ASME, ANSI, API, JIS, JPI...3) Material:carton steel,alloy steel,stainless steel.... Welding Flange