1].Sintered NdFeB magnet, 2].speed lead time(3-15 days) 3].Zinc,nickel,epoxy coating 4].35H, max working tempature 120degree ... ,linear motors,loud speakers,MRI,medical apparatus,transmission machine,etc.3), Shape:Block,Cylinder,Disc,Cube,Arc,Ring,segment,other specail ... , Au, Ag, epoxy- Quality is pass RoHS(2002/95/EC) & EN71/3, REACH- Dlivery day is about 7-15 days.Raw Material ...