... Flange, Alloy flange,Plate Flange class 200 of yellow paint steel flange ANSI Flange Size:1/2" ~ ... 16K and 20K ANSI Flange Materials: Carbon steel, Stainless steel and Alloy steel etc. Market: America, Europe, Korea, ... whole quality control system which covers every process of the manufacturing-Raw material inspection, cutting, heating, ... replied within 24 hours. class 200 of yellow paint steel flange