AL core material, imm gold, prototype, big volume Advantech PCB provide wide range circuit boards, we ... 6 mmCu-thickness : 17µ, 35µ, 70µ, 105µMaterial:CEM1, CEM3, FR1, FR2, FR4, HighTg, Teflon, Rogers, Arlon, ISOLA 680, AluminiumSpecial Kinds: HDI PCB ... , HF PCB (High Frequency PCB), MC PCB (Metal Core PCB)From laminate choose, manufacturing to packing ...