... PCB, MCPCB, High frequency PCB and Metal-backed PCB, etc single side PCBOEM products are high welcomed: Layer: 1-20 layers ... : 0.20mm Advanced Technologies: Blind/Buried Via, HDI Micro via Surface Finishing: HAL, HAL(Lead-free), Gold plating, Immersion Gold/Sliver ... Certificates: ISO9001, UL, RoHSPCBs of various kinds1. Our Product range Single PCB; Double PCB, Multi-layer PCB, MCPCB, High frequency PCB ...