4layer-fr4-core-pcb
4layer-fr4-core-pcb.we produce 4 layer fr4 pcb with high TG 170 or high TG 180. the high TG fr4 core will be more better than standard fr4 core.
If you need 4 layer fr4 pcb. please send us your pcb gerber files. and processing requirement. let’s have a quote.
