high power Large size Mn-Zn ferrite cores transformer core design and develop new cores various materials, H40 ,H44 H95 etc EE,EC ... ferrite corehigh power ferrite cores , Mn-Zn ferrite core,large size ferrite cores.material : PC40 PC44.transformer ferrite cores UFUF30, UF64, UF75, UF80 ... , I130, I100, I200, SP90, SP80OtherPEE64, L96, L76, EX264, PQ107 ferrite cores