N45 ring permanent magnet high (Br), high (Hcj) & high (BH), disc, N33-N45, 30M- ... N45 ring permanent magnetWe are well equipped to manufacture these materials to customers' specifications. Product Description Material Grade of NdFeB magnet: Magnet N-( N30 ... ,N33,N35, N38, N40, N42, N45, N48), working temperature:80 deg. Magnet M-( N33M, N35M ...