... We offer quick turn pcb production for our customers:1-2 layer in 24 hours, 4 layer in 48 hours ... required:1) Gerber file / PCB file & Bom list 2) Clear pictures of pcb/ fpc/ pcba or pcba sample ... , Autocad, Cam350, etcMaterialFR-4, Hi-Tg FR-4, Lead free Materials (RoHS Compliant) , CEM-3, CEM-1, Aluminium, High ... .5umImmersion GoldNickel 3-7um Au:1-3u''OSP0.2-0.5umPanel Outline Tol (+/-)±0.004''(±0.1mm ...