... D and manufacture of Amorphous cores,Nanocrystallie cores,CT(Current Transformer), Inductors,Magnetic ballasts and Transformers.Main products are as follows ... kilowatt power supplies for telecommunication and traction applications, e.g. mobile phone base stations, battery chargers, frequency converters or solar inverters ... :http://www.coilcore.com Nanocrystalline core for large power transformer