... Coating 4.Deep Carburized Wear Surface Name: Mud Pump Valve BodyFull Open Plate TypeMaterial: Alloy Steel, Ductile Iron, ... Grey IronFinishing: EPD CoatingDeep Carburized Wear SurfaceHeavy-duty valve designNo weldingDimensions and tolerances per ANSI Y14.51.These ... Steel, Carbon Steel, Alloy Steel, Ductile Iron, Grey Iron, Copper, Aluminum Bronze, Malleable Iron etc.2) Process: Investment Casting, ...