T-Yoke
The main function is to conduct magnetism, it can divided into one part T-Yoke and two parts T-Yoke, the distortion of one part T-Yoke is less, and has the strong magnet The main role is magnetic, with one and two points, one T iron guide magnetic high, low distortion. But the cost is higher. Surface treatment are mainly blue and white zinc plating, plating color, electrophoresis, chrome plating, sand blasting. In general, for the high-grade speaker, it is better to choose chrome-plating, and for the small speaker, it is common choose zinc-plating or electrophoresis, and the price is more cheaper.
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