This is the Voice Coil (Bobbin) Material Introduction video from Dexlu Industry Co.,Ltd of China including KRLock, KSV, NSV, TSV etc, we offer the online shopping for the various of voice coil material, you can visit “www.dexlu.biz” for more detail.
Artical Link:
http://www.dexlu.org/voice-coil-material-introduction-video-from-china.html
Reproduced please indicate the source:Blog of Dexlu