Multilayer PCB prototype Telecomunication PCB Rogers Fr4 PCB Express Printed Circuit Boards Manufacturing Service Layer count �4L Cooper thickness: O/L:3oz I/L:12oz 1.0mm copper block Material�IT180A Aspect ratio�5:1 Min line width/space�11.8mil/12ml Application: Power Supply MKTPCB provides Hobbyists, Makers and Engineers with high quality and Quick-turn PCBs at affordable prices. Depending on your PCB requirements, we have a fast turnaround time of just 24hours. You must submit your files before 9am(GMT+8) for same day quick turnaround services, Please call us directly (0755-27347385) for more information on this service.