Frequency conversion appliance motor (BLDC), the original is the use of high-priced NdFeB magnets, Because of the breakthrough in the performance of ferrite magnets, and the advantages of low price and Curie temperature, almost replaced NdFeB, the performance is GC-9B grade, remanence 430MT, intrinsic 380 KA / M, such as Hisense, Haier, Samsung washing machines and air conditioners are covered.