N52 Neodymium magnet 40×20 rare earth super strong powerful round permanent magnet 50X30mm 30x20mm search N35 N40 electromagnetN52 Neodymium magnet 40×20 rare earth super strong powerful round permanent magnet 50X30mm 30x20mm search N35 N40 electromagnet
Price: 1.Size:30X20MM/40x20mm/50x30mm N52>N40 1.N40 Tolerance: 2mm Cheapest & Strong 2.N52 Tolerace:0-2mm Better & strongest Our strore N52 is stronger than other stores' N52 Product Details: Shape: Disc Size:40x20mm/50x30mm Material: NdFeB permanentMagnets Grade:N35/N40/N52 Max Operating