1, Good quality and competitive prices 2, ISO 9001 approved. 3, German quality level Manufacture: DIN3356, EN13789Face to face: DIN 3202, EN558-1 list1Flange: EN1092-2 PN16Nominal pressure: 1.6, 2.5 and 4.0MPaAvailable materials for body and bonnet: GG25, GS-C25, CF8, CF8M, CF3 and CF3M