... materials co ltd has manufactured and exported a winde range of Ndfeb pot magnets, Alnico pot magnets, Ferrite pot magnets, ... saver, Magnetic softener, Fuel saving devices for many yesrs .All of our products are manufactured according to ISO9001-2000 and ROSH ... customer sample ,packing and other customer request .Feature:1) Made of iron ,steel wtih sintered Ndfeb, cast Alnico, sintered Ferrite .2) ...