... Oxide7.Hardnes:HRC56-HRC615F-6R flapper valve Cage Mdl.G CageFlapper Valve CageInvestment Casting Stainless Steel, Alloy SteelChecked ... fluoropolymer coating int the worlddramatically reduces crrosion and erosionMODEL "G"Flapper-Full FlowFalpper style valve features, and investment ... UNI, ANSI, ISO etc.We are able to supply the products as follows:1) Materials include: Stainless Steel, Carbon Steel ...