... coated. We offer:EE core, EI core, EFD core, ETD, UR core, ER core, UF core, UY core, UYF core, T core, EP core, EFD core, RM core etc. Ferrite cores used ... main products:Bobbin core, SMD bead, toroid core, cup core, PC core, ETD core, ferrite bead, pot core, drum core, thread core, antenna core, SMD power core, iron power core and other cores ...