... Capability for PCB Board1). Material type: CEM-3,FR-4,FR-4- TG170/TG180, Halogen Free,Rogers,Arlon,Taconic,Isola,PTFE ... colour:Green/MATT Green/Blue/Yellow/ White/Black/Red/Transparent 4). Board Size: 650mm*1000mm5). Board Layer: 1L-26L6). ... pcb, 48 hours for 4L pcb, 72 hours for 6L and 8L pcb, 120 hours for 10L or more high ... pcb at the soonest. mobile phone keyboard 4 layer pcb board China