... -Iron-Boron 2. Certificate: ISO9001: 2008, SGS/RoHS, TS16949 Magnetic coil Place of Origin Shenzhen,guangdong,china MaterialSintered Neodymium-Iron-BoronTemperatureThe ... , rotors, wind turbines,wind generators, speakers,loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on.CertificateISO9001: 2008 , SGS RoHS standards ...