The system can replace traditional water tower,high-position water tank,as well as traditional water supply mode of tank and valve control.It has the following obvious merits i.e. economical projects investment,projects period shortening,steady water supply,long-term and high efficient operation, avoiding secondary water pollution,etc.

B.Electrical synchro drive proportional control system

　　Control system of auto manufacturing and assembling equipment and power transmission equipment of power station
　　 Synchro proportion driving control system,which applies to the following trades such as papermaking,printing and dyeing,textile,etc.
　　Gear changing control system,which applies to the following trades such as chemical engineering,foodstuff,rubber and plastic, oil smoke exhauster,etc.