... (ndfeb) Coating:Nickel shape:dics,ring,block,tile, size:according to your need rectangular Magnet mainly comprised of neodymium ,iron ... N30AH,N33AH,N35AH(Max.operational temperature:up to 230c) rectangular Magnet Outsanding product:1)high performance:N52,N48M,48SH ... ,average low weight loss less than 2 mg/cm2 rectangular Magnet applications:loudspeakers,motor assemblies,windmill,Home appliance,acousics ...