... price4. Certificate: ROHS, UL, ISO9001-2000, ISO14001Our Manufacturing Capability for PCB BoardMaterial type: CEM-3,FR-4,FR-4-TG170/TG180 ... gold,immersion gold,OSP,Gold Finger Palting,Selective thick gold plating, immersion silver,immersion tin, Carbon ink,peelable mask Board ... for 4L PCB72-hour for 6L and 8L PCB120-hour for 10L or more layers PCB at the soonest double-side ENIG IC bonding pcb board for ...