Shenzhen Chongding Circuit board technology Co,.Ltd is a high-tech enterprise which specializes in producing double-side and multilayer PCB .Chongding PCB owns a production area of 15000 square meters,with 600 employees mensal throughout 30,000 square meters. Our main products are double-sided to twenty layers printed circuit board , and the HDI PCB that requires the technology of laser drilling . our products cover various industrial application including telecommunication,computer application ...