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This is a 30mm ring magnet from a magnet supplier in China. The outer diameter is 30mm, the inner hole is 20mm, the thickness is 2mm, and the thickness is magnetized. We have neodymium ring magnets of different lengths, outer diameter/inner diameter, finishes and high quality grades. NdFeB ring magnets are finished with uncoated, triple-coated (Ni-Cu-Ni) nickel coatings or black epoxy coatings for optimal corrosion resistance....
This sample is a ring-shaped thin magnet with a thickness of only 2mm. The material is NdFeB and has a strong magnetic force. The specific size is 30mm outer diameter, 18mm inner diameter and 2mm thickness. It is suitable for cup caps, bottle caps, industry, electronics, instruments, Equipment and any place where a magnetic field needs to be generated...
The toroidal ferrite with an outer diameter of 30mm, an inner diameter of 18mm and a thickness of 6mm is a relatively conventional size. It can be either ordinary axial magnetization or axial multipolar magnetization. It has a wide range of applications. Compared with neodymium magnets, it has a great price advantage....
