... N33EH, salt test: 24 to 72 hours. Ring rare earth magnet We are well equipped to manufacture these materials to customers ... N45, N48), working temperature:80 deg. Magnet M-( N33M, N35M, N38M,),working temperature:100 deg. Magnet H-(N33H,N35H, N38H, N40H, N42H, ... N44H,N46H,N48H), working temperature:120 deg. Magnet SH-(N30SH, N33SH, ...