... 2.Process:Investment casting 3.Used:Chemical Water Pump Impeller,Pump Shell,Sand Casting Parts Pump impeller as the part of different pumps ... , we can supply pump impeller, propeller, pump parts, valves and so on! Sand casting have the ... so on.Material: Carbon steel, alloy steel, stainless steel,grey iron,ductile iron.Standard: ASTM, AISI, BS, DIN, JIS, NF .Process: Sand ...