... reasonable price 4)ISO9001 passed Product DescriptionMaterial Grade of NdFeB magnet: Magnet N-( N35, N38, N40, N42, N45, N48, N50 ... ), Magnet M-(35M, 38M, 40M, 42M, 45M, 48M), Magnet H-(35H, 38H, 40H, 42H, 45H ... -(30SH, 33SH, 35SH, 38SH, 40SH, 42SH), Magnet UH-( 28UH, 30UH, 33UH, 35UH, 38UH), Magnet EH-(28EH, 30EH, 30EH, 33EH, 35EH) High corrosion ...