ur Hawin are a manufacturer specialized in the design, manufacture and marketing of various high frequenct transformer , low frequency transformer, current sensing transformer, encapsulated transformer , R-core transformer , PCB mount transformer , switching transformer , power transformer, fly-back transformer, SMD transformer , ADSL transformer , planar transformer, ferrite core, toroidal core, iron power core, sendust core, MPP core, amorphous core, inductor and filter and other magnet and electronic components in china for more than 15 years . Also have the professonal engineers that used to work in C&D and Pulse.