... for transformer 4.ISO&CE certificate plastic bobbin:EE type:1.Bobbin material is PBT2.Bobbin Features is High-frequency 3 Be supplied ... with their match cores4.Bobbin cost is relatively low5.Bobbin Shape are vertical and horizontal6.Slots are Single ... and multi-slot7.Bobbin range are EE, EEL, EI,EC,EF,EFD,ETD,EPC,PQ,RM,UU.8.Can ...