Smart wearable device is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as watches, bracelets, glasses, clothing, etc.

One in every 1 million people in the world is allergic to metals, and the most common allergen is nickel. The surface of electronic equipment is electroplated, and the most common is nickel plating.

Electroplating is the process of plating a thin layer of other metals or alloys on the surface of certain metals by using the principle of electrolysis.

Neodymium iron boron magnet (NdFeB magnet), also known as rare earth permanent magnet, is currently the material with the largest magnetic energy product in the world. NdFeB magnets are widely used in electronic products, such as hard drives, mobile phones, earphones, and battery-powered tools.

Electroplating is the process of plating a thin layer of other metals or alloys on the surface of certain metals by using the principle of electrolysis.