BIDRAGON is a group company, amorphous ribbon, nanocrystalline ribbon, amorphous core, nano core, DC immune CT core are one of our main products. As a group company founded in 2009, BIDRAGON has its own design research and development department, product department , quality inspection departments, sales department, shipping department and after-sale department. Our main products: Ribbon: Amorphous ribbon, Casted nanocrystalline ribbon, Slitted nanocrystalline ribbon. Cores: Precision Current Transformer Cores, Instrument Transformer Cores, Toroidal Core for Switched Mode Power Supply, PFC Choke Cores, Cores for Electro-Magnetic Earth Leakage Circuit Breakers, Power Transformer Cores, Rectangular Cut Cores, Medium Frequency Power Transformer cores, High-frequency Transformer Cores, Network Transformer Toroidal Cores, Common Mode Choke Cores, DC Immune CT Cores, Co-based Cores and other cores.