
Tongyang Electronics has successfully built a series of Tongyang products featuring sendust toroid. As one of Tongyang Electronics's multiple product series, ei ferrite core series enjoy a relatively high recognition in the market. The creation of Tongyang efd bobbin is in compliance with both national and international standards, such as GS mark, DIN, EN, RAL GZ 430, NEN, NF, BS, or ANSI/BIFMA, etc. It has been exported to Vietnam, Thailand, Russia, etc. Except advanced machine, it is also very important for Tongyang to have professional team to test the quality of ef bobbin. It has been exported to Vietnam, Thailand, Russia, etc.

We make environmental preservation efforts in our business operation. We have established an in-house environmental management system, with the goal of achieving symbiosis with nature.