voice coil for consumer electronics
冲多孔接導綫音圈
全尺寸定制
products details
兩層兩出頭，上下冲兩排孔，低音接錦絲綫引出作法。
bobbin: aluminum鋁箔
綫材:1-psvalw純鋁綫
補强紙：原色牛皮紙
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