DIN standard flange/wn flange: 1.BL/PL/SO/SW/IF/WN/TH 2.DIN/ ... export package or as you nee 1.This type of flange strictly executive ANSI B 16.5/ANSI B 16.47 ... includes 201#,202#,301#,304#,304L#,316#,316L#,321#, class with PN0.25MPa-16.0MPa(class 150,300,400,600,900 ... ,We'll be happy to give you details. DIN standard flange/wn flange