... WN flange 1.Size:DN10--DN800 2.Standard:ANSI GB JIS DIN 3.Material:317L,316L,304H/L,321, ... 310S,347H, ansi b16.5 class 150 weld neck flange1.specificationStandards: ANSI(ASME), AWWA, ... SO,WN A105, A350LF2,A182 F304/F304L,F316/F316L 5 ANSI B16.47 B(API605) 26"--60" 75--900LBS ... ,33,34 EN10025(S235JRG2),EN10222-2AND3(P245GH ANDP280GH),EN10222-5(1.4303,1.4306,1.4307,1.4401,1. ...