1.ferrite core|ferrite magnet|transformer core 2.range:EFD,EF,EE,EPC, ... ER,PQ,RM,UU,EC,DR 3.Supply grind gap and matched bobbin ferrite core ... | soft ferrite core| transformer core| ferrite magnet coreCore material: MnZn power ... RM ,UU Advantage: 1.We can supply the core with matched bobbin.2.Supply with the service ...