... -N42-N52(M,H,SH,UH,EH) custom design as per drawing custom dimension as long as 200mm guaranteed quality Neodymium rare earth magnet, Long ... . Coatings: Ni, Zn, epoxy, gold,silver, Cu and so on (as per the requirements).5. NdFeB magnet has super strong magnetic force ... magnets are mainly made from neodymium ,iron, and boron. It is the ideal magnetic material in the world till now and ...