... finished thickness:1.6mmSurface finish/treatment:HASL lead free Certification:RoHS compliance Solder marsk:greenMin.Min. ... -4,CEM-1,CEM-3,High TG,FR4 Halogen Free ,Rogers,HF,NELCON,TACONIC,ARLON,etc4)Surface finish ... /treatment: HASL/HASL lead free,HAL,Chemical Gold/tin,Immersion Silver/Gold/Tin ... PCB,Flex-rigid PCB,HDI PCB ,PCB of single,Double and Multi-layers,High frequency PCB ,etc6 ...