... -stop-service 2-layer PCB factoryWe can provide you all lines of PCB, PCB boards, PCB circuit, circuit board,electronic pcb, Copy PCB, design PCB, prototype PCB, PCB fabrication, PCB layout ... Hole Size: 0.075mm/3mil7. Copper Thickness: 0.5oz-5oz(17µm-175µm)8. Surface Finishing: HASL, Lead free HASL ...