... Degrees; 3. Customized Coating & Sizes AvailableSurface treatment: Ni, Zn, epoxy, gold, tin, Ni+Cu+Ni and Cr3+Zn;Size available: 40 ... magnetsNdFeB, AlNiCo & SmCo magnets are found wide application in:Acoustics: speakers, microphone;Transportation: automobile, Motor Assemblies;Electronics: Sensors, Instrumentation, Transducer;Electrical ...