Manufactory, good quality with low price. Pass SGS EN71 certification. supply best service ... to 200 degree centigrade or 380 curie temperature; 4. High quality with competitive prices;5. Grades: N33-N52, 33M-48M, 33H ... , motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on Good quality arc size use for motor magnet