... Lron,Aluminum Bronzd, Stainless Steel,CF8M Stainless Steel,Carbon SteelDisc:Plated Ductile Iron, Aluminum Bronze ,Stainless Steel , Titanium Steel , CF8M Stainless Steel,Carton SteelStem:Stainless Steel ,Carbon Steel.Bushing:Lubrized Bronze, PTFESeat ...