... support and after sales service. Specializing in Double Side PCB, Multi-Layer PCB, F4BK PCB, Ceramic PCB, Rogers PCB, Aluminum ... PCB.1.Single-sided, double-sided and multi-layer boards.2.HAL, HAL lead free, Immersion Gold/ Silver ... TEFLON, , Halogen-freeā¦3Rang of finish baords Thickness0.21-7.0mm4Max size of finish board900*900MM5Minimum Linewidth0.1mm6Minimum Line space0.1mm7Min ...