Casting Impeller,Pump impeller,Stainless Steel Impeller 1.Material:alloy steel,SS 2.Process:Investment casting 3.Used:Power Casting Impeller,Pump impeller,Stainless Steel Impeller Pump impeller as the part of ... effectiveness and so on.Material: Carbon steel, alloy steel, stainless steel,grey iron,ductile iron.Standard: ASTM, AISI, BS, DIN, JIS, NF .Process: Sand casting ...