Sintered NdFeB Magnets: The most powerful magnet in the world ! 1). Super strong magnetic force, 11700 - 14800 Gauss. 2). Hard, brittle and exellent resistance to corrosion with surface coating. 3). Moderate Temperature Stability, Max working Temp is 220 celcius. 4). Advanced Production Technology ( Strip casting, HDDR) 5). Extremely Resistance to demagnetization.