... 4 hours 4. UL,ROHS,SGS,ISO9001 6-Layer pcbPCB&PCBA manufacturer:We can offer 1 to 12 Layer PCB fabrication, PCB ... Specification of ZLX technology: 1layer1-12 layer2MaterialFR-1,FR-2,FR-4,CEM-1,CEM-3,Hight TG,FR4 Halogen Free,3Board ... Gold,Immersion gold Inmersion Silver/Gold,Osp,Gold Plating9Copper thickness0.5-4.0oz10Solder mask colorgreen/black/white/red/blue/yellow11Inner packingVacuum ...