... than any other magnets.3) NdFeB Magnets are of different grades, such as:N,M,H,SH,UH,EH and AH ... Acoustics*****Quality: We can provide all kinds of size and grades of sintered NdFeB magnet and at the same time all ... specializes in producing sintered Nd-Fe-B magnet of many grades and sizes, so that our company definitely is competent to ...