Is there any third party doing toroidal core quality test?

To be able to confirm our information on toroidal core is dependable, we turn into a third party for product testing. This invaluable endorsement for the product functionality will give our customers additional satisfaction that the products are rigorously tested to industry standards.

Guangzhou Tongyang Electronics Co., Ltd. is the world's largest producer of ef ferrite core, with a magnificent transformer e core production. As one of Tongyang Electronics's multiple product series, ef ferrite core series enjoy a relatively high recognition in the market. A range of quality inspections for Tongyang ei type ferrite core will be carried out by professionals. It will be checked in terms of surface smoothness, stability, harmoniousness with space, and actual practicability. It can be effective in reducing the conducted and/or radiated emission from the cable. Without the high quality performance, ef ferrite core can not be so popular in this market. It has improved surface after grinding process.

Our philosophy is "Honor the contract and keep promises; Searching for development with high quality; Serving guests with credibility". We are eagerly looking forward to cooperating with customers.