... .customize 4.tolerance:+/-0.005mm --- +/-0.02mm micro precision magnet/watch movement rotor magnet/smco magnet Flygain Magnetic Co., Ltd. have ... in the manufacture of Micro Magnets/Rotor magnet for quartz watch or electric meter counter stepping motor. And more.SmCo, ... . our deep-hole thin magnetic ring are widely used in watch, clock, micro-motor, meters, optical communication and other field. Also ...