Precise advance equipment and more than ten years skill work to manufacture the highest quality unit. Specification:19.7*1.4*φ3Manufacturer introduce:Dongguan Kam Yun Wo Electronics Industries Limited, chinese No.1 speakers metal stamping factory who more than ten year cooperate with foxconn,KME ETC,Fujikon,G-start Etc famous speaker driver manufacturer brand. Import the most advance equipment ...