... ; PH:6.5-8.5; Max. medium temp.:100 C; ISO9001,ISO14001,CE,CCC Cast iron,stainless steel QS series submersible pump can be ... water proof winding wire, and it is rewindable.QSR series submersible pump can be used to pumping hot water from underground, the ... , and it is rewindable.Meterial: Cast iron, stainless steel for pump body; Cast iron, stainless steel or broze for impeller; Steel ...