King Core Electronic Inc. is a professional Ferrite Toroids manufacturer and exporter. King Core has confidence in supplying customers with the highest quality Ferrite Toroids and also specializes in providing Ferrite Toroids design and services. Our philosophy has always been to strive for a balance between bold innovation and constant improvement-between fluid adaptability and utmost concentration on details. We are constantly searching for ways to improve our products and customer service and welcome new challenges. For your better understanding of our company, please pay a visit on this website.