Material: Neodymium NdFeB arc Magnet Grade: 35-50(N, M, H, SH) Coating: ... , Ring, Block, Segment, Cylinder, Trapezoid, Customized Design(Design proper magnets for clients specific requirements) 4.Tolerance of permanent Neodymium NdFeB Magnet ... DiameterInner DiameterThicknessMaximum220.00mm80.00mm50.00mmMinimum1.00mm0.60mm0.50mm Segment, Arc and other irregular shapes can be made according to customer ...