double sided pcb: 1. High Quality PCB 2. Using Latest Technology 3. Produce PCB and FPC board 4. UL, RoHS, SGS Double Sided PCB For OEM ... Electronic ( HK) Limited, is a professional PCB manufacturer, with the strength of 1 - 30 layers of PCB and 1-6 layers ... , Lead free Materials (RoHS Compliant) , CEM-3, CEM-1, Aluminium, High frequency Material (Rogers, Teflon, Taconic)Layer No.1 - 30 LayersBoard ...