... Sided Printed Circuit board Welocme to tianweisheng, We are professional FR-4 pcb manufacturer in china specialize in pcb, pcb ... our process capability as follows: 1layer1-20 layer2MaterialFR-1,FR-2,FR-4,CEM-1,CEM-3,Hight TG,FR4 Halogen ... boards, flexible circuit board (FPC), high-precision impedance, HDI, other special circuit board fabrication capacity. Delivery fast, with quality, credibility is ...