Zinc coated Neodymium speaker ring magnet

Zinc coated Neodymium speaker ring magnet The speaker ring magnets are zinc coated, used for the big speakers, loudspeakers. The big speaker ring magnet has a very strong magnetic force, thus making the speakers with High-Quality Sound.  Speaker ring magnet more details as below: Material NdfeB Grade 35H Outer Diameter 72mm Inner Diameter 35mm Thickness 8mm Magnetizing Direction Axial Magnetization (Thickness) Plating Coating Zinc Magnet Weight 187g More photo for ring magnet Details:

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