... delivery with high quality 4.20years in Printed circuit board 1. circuit board2.UL,SGS,ROHS,ISO9001. CEC 3. ... electronic co.,ltd is a professional PCB printed circuit board manufacturers, production bases located in Bao'an, and ... multilayer blind, buried hole circuit boards, flexible circuit board (FPC), high-precision impedance, HDI, other special circuit board fabrication capacity. Delivery fast ...