... N45-N48-N50-N52 3)Nickel,Zn,ni-cu-ni coating block permanent magnet block ndfeb Magnet is the most ... it have been widely used in electronics, electrical, mechanical, medical equipment and others. 1)Material:sintered NdFeB magnet 2)Garde:N35 ... Ni,NiCuNi,Zn,Black Expoxy,Black Nickel,Ag,AU,etc coating.4)Application:Acoustics,Motors,Windmill,Transportation,IT industryequipments,Home appliance,Loudspeaker ...