Series relay single-phase voltage stabilizers, adopting the double sampling, double stabilizing voltage, and the advanced electronic automatic controller, which employs the time-base IC for time-delay, offer the advantages of quick work, accurate ... - Update: 2009-07-01

Power inverters are manufactured by referring the advanced circuit design at home and aboard, adopting the imported. Integrated PWM for control and high power crystal modular pipe for drive. The power supply inverters offer the featured of quick s... - Update: 2008-03-29