... ,RM,UU,EC 3.supply the matched ferrite core bobbin| transformer bobbin| plastic bobbin| ferrite bobbin| coil bobbin core range:EE ... with matched core.2.Can be custom-made as client's specific requirement.3.Supply with the service of grind air ... . · EC series applied in the linear filter ,current tranformer,smoothing choke coil,drive transformer For more details of this bobbin,please reference ...