NdFeB magnet is mainly made from neodymium, iron and boron and other mental element, it is the most pow-erful commercialized rare earth permanent magnets available today, with maximum energy product ranging from 8 MGOe to 55 MGOe and good coercive force. Widely used in industrial automation, mine, motor, communication, pe-troleum, magnet separator, medical treatment, Hifi acoustics, computer, Aviation, testing device, electronics and tim-ekeeper ect.
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