... .Grade:N,M,H,SH,UH,EH,AH Super high quality Round NdFeB Magnets We are a sintered neodymium (NdFeB) ... ,30SH-42SH,30UH-40UH and 28EH-35EH;28AH-35AH.4. Shape: Block,Ring,Disc,Cylinder,Rod,Bae,Cube ... and diameter, coating and environmental factors.3.Density:7.4~7.65g/cm³,Reversible Temperature coefficient αBr-0. ... Workshop Equipments:Products:Your designs are welcomed! Super high quality Round NdFeB Magnets