Single-Sided PCB,PTH Double-Sided PCB,NPTH Double-Sided PCB,Flexible PCB(FPC),Multi-layer PCB(2~30 Layers)for worldwide customer Leadsintec ... Printed Circuit Boards ( PCB , FPC ), Single-Sided PCB,PTH Double-Sided PCB,NPTH Double-Sided PCB,Flexible PCB(FPC),Multi-layer PCB(2~30 Layers) ... : 1-3 Day QTA sample. - Multilayer PCB(4~6 layers): 4~6 Day QTA sample. - Multilayer PCB(8~30 Layers): 7~12 Day ...