11 years production experience Mn-Zn soft ferrite core low cost high permeability,low loss REACH,ROHS approved ... high grade soft ferrite magnetic core, Mn-Zn ferrite magnetic cores.widely used in industries, ... and military industry.EE series,EI series,T series / toroidal ferrite,EP series,EC series,UU series,RM series,PQ ... :4-9 Ω*m high grade soft magnetic ferrite core