... -Iron-Boron 2.Certification: ISO9001:2008,ISO/TS16949 neodymium magnet with screw hole :1) Material: Sintered Neodymium-Iron-Boron;2) Temperature ... , rotors, wind turbines,wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles etc.8). Certificates and standards : ISO9001:2000 , SGS RoHS ... .5)≥2400(≥30)248-272(31-34)200 neodymium magnet with screw hole