DIN Valve Product Description锛?/strong> Standard Material Specification NO.Part NameKWJH41-16/25KWJH41-40 1BodyGS-C25N Carbon SteelGS-C25N Carbon Steel 2BonnetGS-C25N Carbon SteelGS-C25N Carbon Steel 3Disc2Cr13/3Cr13 4Seat2Cr13/3Cr13 5Stem2Cr13-304 6HandwheelKTH330 7PackingFlexible graphite 8Gasket304+ Flexible graphite 9Bellows304/316 Test Pressure to DIN3230 PNShell TestBack SeatSeat...