King Core Electronic Inc. is one of a specialized Toroidal Coils manufacturer and other products. With a deep-rooted reputation for product and service quality. King Core achieved ISO9001 certification and have put the worldwide process and quality standard into practice for consistent quality performance. Our dedicated engineers and testing facilities review processes at every step, looking for ways to increase the quality and reliability of our Toroidal Coil products. We hope to continue to improve our service and support even further, making every customer feel like a part of King Core family.