1.Standard: Conforms to API/DIN2.Face to Face conforms to DIN3202 F6, ANSI B16.13.Flange suitalbe to EN1092-2,ANSI 125/1504.Material: Cast Iron/Ductile Iron/SS304/SS3165.Normal Pressure: PN10/16,ANSI 125/1506.Size: DN40-DN600