... :N,M,H,SH,UH,EH,AH Super high quality Round NdFeB Magnets We are a sintered neodymium ... years.We have confidence in providing your high quality products.Features:1. Material:Sintered Neodymium-Iron-Boron.2. ... -42SH,30UH-40UH and 28EH-35EH;28AH-35AH.4. Shape: Block,Ring,Disc,Cylinder,Rod,Bae ... diameter, coating and environmental factors.3.Density:7.4~7.65g/cm³,Reversible Temperature coefficient αBr- ...