... .Passivation.. Magnetization: Yes or No High and stable Performance N48 HR Brand Permanent Cylinder High Performance Ndfeb magnet is made from Neodymium, Iron ... , tile, square, cylinder and magnetic ring with various sizesHigh magnetic performance (Br: 11,000 to 14,500 GS, Hcj: 11,000 ... me at any time. N48 HR Brand Permanent Cylinder High Performance Ndfeb magnet