Shanghai Jingda Co. is a Chinese leading enterprises undertaking technology development and manufacture of the electricity voltages regulator and power source products. Our company is Shanghai model unit ,Shanghai Contract- observing and Trust worthy Group, Shanghai High-New technology enterprises; As he main unit drafting the states trade standard (JB/T7620-1994) included in Compensation-type AC Line Regulator, is Shanghai section committee and section research plan item; our company passed the ISO9001:2000 standard Quality System Certification and Communication Equipment Net-access Certification by information industry Department in 1998; we also got the Defense Communication Equipments Network Access Authentication of PLA Headquarters of the General Staff and the ministry of Public Security License of Compute System Security ;Acquire three Shanghai attestations of the high and new technique conversion to product item for independence intergration property right researches to manufacture and develop the patent technique ; the high and new technique of voltage regulator and almost reach and exceed the international advanced level .</p>