... 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. ... per customer's requirements.Standard: ASTM, BF,BS, JIS, UNI, ANSI, ISO etc.We are able ... ISO9001:20008) Standard: ASTM, BF,BS, JIS, UNI, ANSI, ISO etc.