... 3. Process:sand casting. 4.Pressure Test. 5.Quality Assurance. Casting Water Pump Body1 .Material: Grey iron,Ductile Iron ... lathes, milling, drilling, planning, grinding machines and test facilityChemical composition controlled by spectrometerOEM orders are welcome, ... pipes and its fittings, grating, frame, manhole covers, pump parts, handwheel, valve, flange, bollard, pilingaccessories, counterweight ...