... Materials: Neodymium-Iron-Boron 2.Shape: Disc,Disk,Stick,etc... 3.Certificate: TS16949 / ISO2008 NdFeB Disc Magnet:- N35-N52, N48M, N48H, N45SH ... Dimension range: 1-280 mm- Guaranteed qualityProduct specifications:1. NdFeB Permanent Magnets with different grades of: N35, N38, N40, N42, ... SH, UH, EH) etc.2. Working temperature for NdFeB Permanent magnets: From 80 centigrades to 230 centigrades.3. Can be ...