... Nickel shape:block,segment size:according to your need permanent magnet generator mainly comprised of neodymium ,iron and boron,is ... N33AH,N35AH(Max.operational temperature:up to 230c) permanent magnet generator Outsanding product:1)high performance:N52,N48M,48SH, ... low weight loss less than 2 mg/cm2 permanent magnet generator applications:loudspeakers,motor assemblies,windmill,Home appliance,acousics, ...