oval shaped voice coil-利来w66
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non-circular voice coil
non-circular voice coil
椭圆形音圈
全尺寸定制
products details
四層兩出頭椭圆形状音圈,折下餘白,銅片三明治 接錦絲綫作法。
bobbin: aluminum鋁箔
綫材:
1-esvcaw銅包鋁綫
補强紙:原色牛皮紙