2011 Certrifugal Single-stage Casting Water Pump Body 2. Material: Grey iron GJS450-10 3. ... Process: sand casting. 4.OEMservice TestProducts 2011 Certrifugal Single-stage Casting Water Pump Body1 Material: Grey iron GJS450-10Standard: ASTM, JIS, ... range: pipes and its fittings, grating, frame, manhole covers, pump parts, handwheel, valve, flange, bollard, pilingaccessories, counterweight iron, ...