... Flange Socket Welding Flange, Alloy flange,Plate Flange 4" stainless steel exhaust flange ANSI Flange Size:1/2" ~ 64"(DN15 ... 16K and 20K ANSI Flange Materials: Carbon steel, Stainless steel and Alloy steel etc. Market: America, Europe, Korea, South ... Paint, Hot Dipped Gal.Sample: Flange Sample for free, freight collect to the new customer. Kum ... replied within 24 hours. 4" stainless steel exhaust flange