bare PCB board: 1)1 Layer,50*40mm,qty:1pc 2) ... 3)EXW:30 usd dollars 4)Max size:600*600mm bare PCB board:1)1 Layer,50*40mm,qty:1pc2)Only ... presentation 1. about the main production: PCB (printed circuit board)--bare board only, from single sided to 8 layers. Strong in ... -A-600F,IPC-D-300G,MIL-STD-105D LEVEL II bare PCB board