https://www.ktmagnet.com/products/sintered-nd-fe-b-magnets/
Sintered NdFeB magnets are powerful permanent magnets made from an alloy of neodymium, iron, and boron through a sintering process. The magnets offered by Ketian, the leading sintered NdFeB magnet manufacturer, possess high magnetic properties and excellent thermal stability. These sintered NdFeB magnet are widely used in various applications such as electric motors, wind turbines, hard disk drives, and magnetic fasteners due to their high energy product and coercive force.