This product is a cylindrical neodymium magnet with pits and nickel coating on the surface. It is mainly used for sensors and adsorption. The material grades can be N52M, N50H, N48SH, N45UH, N42, N40 and below, and the operating temperature range is -40- 220℃, the default magnetization delivery, welcome to consult and customize the size of the magnet!...