Gaotune Technologies is a leading manufactory of the amorphous & Nanocrystalline alloy core in China. We are also the amorphous cores supplier of PULSE and SUMIDA etc... We are always glad to cooperate with our customers ......Gaotune Technologies is a leading manufactory of the amorphous & Nanocrystalline alloy core in China. We are also the amorphous cores supplier of PULSE and SUMIDA etc... We are always glad to cooperate with our customers in R&D projects as a amorphous core source in China. Our main products are as following: Amorphous C-Core (C Type and Rectangular Type) Cores or Cut-core for Reactors Toroidal Core of Fe-based Amorphous, Nanocrystalline Alloy & Co-based Amorphous Alloy used for Transformers of Inverter Power Supply,, Toroidal Core for Switched Mode Power Supply, Current Transformers, Integrated Service Digital Network (ADSL/ISDN), Ground Fault Interrupter, Toroidal Saturable Inductor Core for Noise Suppresser or Audio industry.