Pump Body,Pump Shell,Pump Parts 1.Material:Iron,steel 2.Precess:Resin sand casting 3.Used:Construction,Oilfield,Electricity ... as extreme versatility, cost-save effectiveness etc1.Material: Carbon steel, alloy steel, stainless steel,grey iron,ductile iron2.Standard: ASTM, AISI, BS, DIN, JIS ...