... ,ISO14001,CE,CCC Cast iron,stainless steel QS series submersible pump can be used to farm irrigation ... winding wire, and it is rewindable.QSR series submersible pump can be used to pumping hot ... rewindable.Meterial: Cast iron, stainless steel for pump body; Cast iron, stainless steel or broze ... for impeller; Steel or stainless steel for motor shell.Medium temperature: Less than 40°C for QS series; ...