This sample is a cylindrical aluminum-nickel-cobalt permanent magnet, grade Alnico 8, the magnet diameter is 5mm, the thickness (height) is 20mm, can be axially or radially magnetized, has good corrosion resistance and high temperature resistance, can be processed into a variety of shapes. More common are square, round, circular, rectangular, horseshoe and irregular shape, often used in micro motors, sensors, magnetic brakes, electronic equipment, mechanical equipment, instrumentation: odometer, electricity meter, water meter, and so on.
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