1. induction coil 2. power inductor 3. inductor coil 4. choke coil This induction coil is ... by coil winding machine Product name: induction coil / power inductor / electric choke coilProduce mode: YT09C--201made by coil wilding ... performanceThis induction coil extensively used in speakers,smart cards,electronic toys&gifts, earphones,mobile phone,computer peripheral,motors, generator, refrigeratory ...