Flex part 4layer pcb Polymid Pcb thickness: 0.15mm Yellow coverlayer White silkscreen Surface treatment: enig Min line/space: 6/6mil Min hole: 4mil Rigid part 8layer pcb Pcb thickness: 0.8mm Green solder mask White silkscreen Surface treatment: enig Min line/space: 8/8mil Min hole: 6mil Brand name: syspcb