STAINLESS STEEL IMPELLER a) Material: carbon steel, stainless steel, alloy steel,etc. b) Process: laser welding machine STAINLESS STEEL IMPELLERa) Material: carbon steel, stainless steel, alloy steel,etc.b) Process: laser welding machinec) Standard: ASTM, BS, SAE, DIN, UNI Stainless steel impeller