... SGS & ROSH NdFeB is the metal neodymium, iron, boron and other trace metals made alloy magnet, is the strongest magnetic rare earth ... permanent magnet, It is a high energy product ... , Gold, Silver, c. Certificate: ISO9001:2008 d. SGS & ROSHNdFeB (Neodymium) Magnets are widely used in motors, chucks, magentic lifter, sensors ...