1, four-layer rigid bare pcb 2, Best price 3, Good quality 4, Quick delivery 5, Considerate service Our capability:Layer: 1 to 12 ... : 606*530mm (board thickness>1.2mm)F, Six-layer pcb: 430*430mmG, Eight-layer pcb: 430*430mmH, More than eight layers: 270 ... first and credit stands foremost; We are professional PCB manufacturer! four-layer rigid bare pcb