Nippon-Core Electrical Co. ,Ltd specializes in manufacturing tape wound cores and stacked cores in CRGO materials, for low and medium frequency test transformers, inductors and power transformers.  Nippon-core is devoted to the development of high-efficiency, energy-saving and excellent performance magnetic cores. As a reward of its continuous efforts, the company has been the priority issue in Nippon-Core's philosophy, it was certified to TUV ISO9001 quality assurance system in 2000.