Shanghai Sange Electric S&T Co.,Ltd is the high and new technical enterprise in Shanghai,The leading products include ,dc power supply, battery changer, emergency power supply,inverter, isolation transformer etc. Sange have a lot of senior technical persons who engage in the development of electric and electronic technology, establish the high-quality flexible manufacture system, are equipped with the advanced manufacture and inspection equipment of domestic industry, and have successively passed ISO9001 Quality System Certifications and formed the perfect quality management system .We strict implement the operation guideline of “Lea...Details>>