... ; 3. Customized Coating & Sizes AvailableSurface treatment: Ni, Zn, epoxy, silver, gold, tin, Ni+Cu+Ni and Cr3+Zn;Sizes ... website. 5. The main Applications of magnetsFerrite, NdFeB & SmCo magnets are found wide application in:Acoustics: speakers, microphone;Transportation: ... with us for NdFeb, AlNiCo, SmCo, Ferrite components and fridge magnets.Look forward to seeing you in our factory in Huizhou ...