DIN standard flange/plastic 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 ... #,202#,301#,304#,304L#,316#,316L#,321#, class with PN0.25MPa-16.0MPa(class 150,300,400,600,900,1500,2500 etc ... ,We'll be happy to give you details. DIN standard flange/plastic flange