Magnetic Separator, Rod Magnet, Grate Magnet manufacturer / supplier in China, offering N52 Rare Earth Neodymium Magnets Disc Magnet with Countersunk Hole for Screw Magnetic Materials, D16-D120 N38 Strong Round Countersunk Pot Magnet Nicuni Neodymium Magnet with Screw, 10mm 12mm 15mm 18mm M4 N52 Super Strong Neodymium Magnet with Countersunk Hole and so on.