... , N33AH), working temperature:220 degree Celsius.2.3.Magnet shape: Block,Ring, Arc,Disc, Cylinder, Rod,Bar, Cube,Sphere,Strip etc ... RoHS issued by EU. Electroplating uses chemical-plating processing technology without lead and chromium.10.Application:Sintered neodymium iron boron rare ... the most that we can do for you. NdFeB strong block magnet