... casting. 4.Pressure Test. 5.Quality Assurance. Casting Water Pump Body1 .Material: Grey iron,Ductile Iron 2.Standard: ... metal processing, finishes and heat treatment 6.Product weight: 100-5000KGS7.Precision machining: CNC lathes, milling, drilling, planning ... : pipes and its fittings, grating, frame, manhole covers, pump parts, handwheel, valve, flange, bollard, pilingaccessories, counterweight iron ...