Countersunk Hole in Block NdFeB Magnet
First of all, it is important to ensure that the environment in which the magnet is stored during transport is dry. If the humidity is relatively high, it is easy to cause the magnet rust. You can also use some rust-resistant oil to apply to the magnet surface, which is a good way to prevent magnet rust. For magnets with electroplating layers, vacuum transport should be used to prevent corrosion of the plating layer.