Huihe Circuits is a professional manufacturer of high-density multilayer printed circuit boards, prototype and mass production PCB's. There is a wholly-owned factory in Jiangxi, China. The plant area is 12,000 square meters. Huihe Circuits has been certified for ISO9001, IATF16949, ISO13485, OHSAS18001 and PCB products have been certified for UL, RoHS, REACH.With a professional technology development team.ty.