https://chinamagnetics.en.made-in-china.com/product/PFDJyqQHJmVt/China-Od-115mm-X-ID-45mm-X-T20mm-Large-Ceramic-Ring-Magnet-C8.html
Od 115mm X ID 45mm X T20mm Large Ceramic Ring Magnet C8 - Ferrite Ring Magnet and Permanent Magnet...
Od 115mm X ID 45mm X T20mm Large Ceramic Ring Magnet C8, Find Details and Price about Ferrite Ring Magnet Permanent Magnet Ferrite from Od 115mm X ID 45mm X...