... . Nickel coating to protect the surface. diametrically magnetized cylinder magnets:Material: Sintered Neodymium Iron BoronExcellent strength: The highest (Bh)max reaches up ... .Service: Provide test report and Bh curves for each item magnets, and also we could do the PCT test, Salt spray ... , aging test report according to customers’ request. diametrically magnetized cylinder magnets