... NO MOQ PCB board 3.Free sample before production 4.RoHs complaints electronic HDI PCBwe can provide you ... , HDI MaterialCEM-1,CEM-3,FR-4, High TG FR-4 , Halogen-free FR-4 , aluminium ,Ceramic(96% Alumina) Teflon ... ,TLX-9), Arlon(35N,85N)etc.Material Mixed Laminate4 layers -- 10 layers 12 layersFR4+Ro4350 , FR4+Aluminium , FR4+ FPCMaximum ... trace0.1mmmin space0.1mmcertificateUL, ISO, RoHS FR-4 PCB board