... 2.range:EFD,EF,EE,EPC,ER,PQ,RM,UU,EC,DR 3.Supply grind gap and matched bobbin ferrite core| soft ... permeability ferrite materialcore range:EE,EF,EFD,EPC,EER,DR,EC,PQ,RM ,UU Advantage: 1.We can supply the core ... bobbin.2.Supply with the service of grind air-gap.3.Offer our client the fine quality ,timely delivery,favourable price ... .5±0.24.65±0.25.3±0.211.0±0.25.6±0.22.3±0.22.4432.9013.504438002.70EFD20 ...