... Welding Flange, Alloy flange,Plate Flange large size of stainless steel flange ANSI Flange Size:1/2" ~ 64"(DN15 ... , 10K, 16K and 20K ANSI Flange Materials: Carbon steel, Stainless steel and Alloy steel etc. Market: America, Europe, Korea, South East ... covers every process of the manufacturing-Raw material inspection, cutting, heating, gorging, heat treatment, machining, drilling, marking, washing, ...