... :sand casting. 4.Pressure Test. 5.Quality Assurance. Casting Water Pump Body1 .Material: Grey iron,Ductile Iron 2.Standard: ASTM, JIS ... range: pipes and its fittings, grating, frame, manhole covers, pump parts, handwheel, valve, flange, bollard, pilingaccessories, counterweight iron, construction machinery parts and ...