... ,block,tile, size:according to your need Micro Motor Magnet mainly comprised of neodymium ,iron and boron,is the third generation ... ,N33AH,N35AH(Max.operational temperature:up to 230c) Micro Motor Magnet Outsanding product:1)high performance:N52,N48M,48SH,42UH ... average low weight loss less than 2 mg/cm2 Micro Motor Magnet applications:loudspeakers,motor assemblies,windmill,Home appliance,acousics, ...