... dimension Precise tolerance Neodymium Rare Earth Block Magnets with holes, N35,N38,N40,N42,N45,N48,N50,N52.. Product specifications:1. Neodymium ... to 200 centigrades.3. Can be magnetized through thickness,width or length.4. Coatings: Ni, Zn, NiCuNi,epoxy, gold,silver, ... producing and we canproduce magnets acccording to your own specifications or designs.2, We deliver goods in time and have excellent ...