Ningbo Valve Factory New Products DN: 50-600mm Nominal Pressure PN(Mpa) Suitable for: Water, vapour & Petrol. Materials: Valve Boday: Grey Cast Iron, Ductile Iron for PN1.0 Specification PN1.6, Ductile Iron Valve Disc: Ductile Iron Valve Shaft: Stainless Steel Valve Base: (TA)Butadiene Nitrile Rubber If you feel unsatisfactory with this one, please let us know what can of Valve do you want? Welcome to order and your inquiry shall be replied within two days at most.