... base pcb board 2.Fast delivery,competitive price 3.ROHS, UL, ISO9001-2000, ISO14001 1. single ... ,OSP,immersion silver,immersion tin,peelable mask Board Size: 650mm*1000mmBoard Layer: 1L-4LBoard ... for 4L PCB72-hour for 6L and 8L PCB120-hour for 10L or more layers PCB at the soonest al base for 1 ... -layer printed circuit board ...