1.FR4 material BGA pcb 2.immersion gold 3.Fast delivery,competitive price 4.ROHS, UL, ISO9001-2000, ISO14001 1.FR4 material,1oz copper, bga pcb board2.surface finish: immersion gold3.Fast delivery time,with competitive pricing4. Certificate: ROHS, UL, ISO9001-2000, ISO14001Our Manufacturing Capability for PCB Board1). Material type: CEM-3,FR-4,FR-4-TG170/TG180,Halogen Free,Rogers,Arlon,Taconic, ...