Wholesale Air Core Choke Dongguan Qunke Electronics Technology Co., Ltd. was founded in 2008 and is a high-tech company which integrates production, design, R&D, and sale. We passed ISO 9001 certification and the UL Insulation systems certification. Our main products are electronic transformers, SMD power, inductors coils, fixed inductors, toroidal coils, common mode chokes, and...