... time.Past UL,ISO9001,ISO14001,SGS,2 layer pcb plating gold double sided pcb, 2 layer pcb,pcb board Our product developed most recently is ... , FR4 Halogen Free,FR-1,FR-24) Max. finished board size: 1500mmx500mm 5) Min. drilled hole size: 0.3mm6) Min. Line width ... , Immersion Silver/Gold, OSP, Gold plating 8) Copper thickness: 0.5-2.0 OZ9) Solder mask color: green/yellow/black/white/red ...