... :alloy steel,SS 2.Process:Investment casting 3.Used:Power Casting Impeller,Pump impeller,Stainless Steel Impeller ... AISI, BS, DIN, JIS, NF .Process: Sand casting (resin sand casting,green sand casting) .Machining: Turning, milling, drilling, grinding, threading, ... , electro-polishing .Application:It's widely used to construction,oilfield,electronic, power, chemical, metallurgy, medicine...For more ...