high power Large size Mn-Zn ferrite cores transformer core design and develop new cores various materials, H40 ,H44 H95 etc EE,EC ,UY,UI,UF,SP, T(H),PM,Gu,PQ type ferrite corehigh power ferrite cores , Mn-Zn ferrite core,large size ferrite cores.material : PC40 PC44.transformer ferrite cores UFUF30, UF64, UF75, UF80, UF93/30, UF101, UF105, UF120, UF126, UF130, UF141, UF160, UF240, UF320EEEE55, ...