Have different grades and sizes sintered NdFeB magnet with N52, 50M, 48H, 45SH, 38UH, 35EH ... trasitive metallic elements to make it strong.2. Material: Sintered Neodymium-Iron-Boron3. Grades: From N35 to N52;N35H ... , Zn, White-bule Zn, Expoy, Gold, Etc.5. Size: various shapes and size or according to your request ,also we ... you with most competitive products and best service! Sintered NdFeB Magnet