White spots will appear on the surface of electroplated NdFeB products after storage for a period of time.

Does the subject want to ask, "What are the reasons for white spots on the surface of electroplated NdFeB products after they have been in stock for a period of time?"

1. According to the query of China Iron and Steel Network, magnets are stored in damp places with poor air circulation and large temperature difference, resulting in white spots on the surface.

2. The dirt on the surface of the magnet was not cleaned before electroplating, resulting in white spots on the surface.

3. Due to the damage of the magnet packaging and seal, white spots appear on the oxidized surface of the magnet.