... Magnetic coupling,magnetic drive coupling,magnetic coupling pump 1.Unthreaded Hole Type 2.Axel Hole Type 3.Flange Type Magnetic coupling,magnetic drive coupling,magnetic coupling pump Magnetic ... and machine by permanent magnetic force.They work in the sealless magnetic drive pumps,which ... according to the customer requirmentsMaterials:Neodymium-Iron-Boron magnets, Sintered NdFeB magnetsCertification:SGS ...