... is the strongest permanent magnets in the world up to date,It has excellent properties of high remanence,coercivity, ... ,N38UH(Max.operational temperature:up to 180c) N28EH,N30EH,N33EH,N35EH(Max.operational temperature:up to 200c) N30AH,N33AH,N35AH ... (Max.operational temperature:up to 230c) Neodyium Magnetic Outsanding product ...