This is a hollow tube magnet made of sintered neodymium iron boron, which is the strongest material at present. It can be magnetized axially or radially, and the surface is coated with epoxy resin. It has good salt spray resistance and corrosion resistance, and is suitable for use in water or other harsh environments. You can choose N35-N52, 33M-50M, 30H-48H, 30SH-45SH, 30UH-40UH, 28EH-38EH, 30AH-33AH grades, Foreign friends interested in this kind of hollow cylindrical magnet are welcome to make inquiries.
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