Mainland Energy Conversion Ltd is a Hong Kong registered manufacturer of electronic power devices since 1989, with it’s own production plant in Dong Guan, China.
Product design, mold making, metal stamping, powder coating, printing, coil winding, board assembly, final burn-in and testing of finished products are all done under one and the same roof - an effective tool to keep cost, quality and shipping commitments - as promised. .....            More