... has excellent properties of high remanence,coercivity,and Max.energy product.Sintered Neodymium Magnet gradeN35, N38, N40, N42, N45, N48 ... Operational temperature: Up to 230c)Sintered Neodymium Magnet Outsanding product:1)high performance:N52,N48M,48SH,42UH,38EH,33AH2)high ... %,vapor pressure 2.7 bar.20 days,average low weight loss less than 2 mg/cm2Sintered Neodymium Magnet applications:loudspeakers, ...