submersible pump:Impeller:cast iron,Motor coil:aluminum/copper, Bearing:home/C&U,Shaft withRotor:45#,AIS304,220v/50hz;110v/60 submersible pump: Two –pole induction motor (n=2850r.p.m)Insulation class BProtection IP45 Certificate:CE,GS,EMS,CCC,ISO9001,ISO2000.Customer from america,europe,australia and southeast Asia. Voltage/frenquency:Single phase :220---240/50Hz ; 110V---127V/60Hz if requested. ...