Hai Sheng Electronics(DG)Factory is founded in Jun 2006, We are transformer manufacturer in China, Our production includes transformers, inductors, chokes and coils which include E-core, toroid, DR2W, EMI, RFI, SMD, Steel laminated, for DC-DC and Switching Mode applications requiring high frequency magnetics ,Our engineers are capable of developing a solution that meets customer requirements and provide the most cost efficient design available. And we have over 200 specialized worker now and over 20,000 sq-ft plant, We have superior Quality and excellent service to meet customer requirement.. Welcome to visit Hai Sheng.