neodymium magnet block 1)Material:sintered NdFeB magnet 2)Garde:N35-N38-N40-N42-N45-N48-N50-N52 3)Nickel,Zn ... :Disc,block,cylinder,ring,bar,sphere,tile etc.size according to customer’s request.5)Coating:Ni,NiCuNi,Zn,Black Expoxy,Black Nickel ... :Disc,block,cylinder,ring,bar,sphere,tile etc.size according to customer’s request.5)Coating:Ni,NiCuNi,Zn,Black Expoxy,Black Nickel ...