Q&J Electronic CO. Since 2006, the PCB Technology has been in service. We manufacture printed circuit boards and offer rigid, flexible, and rigid-flexible boards. primarily concentrated on providing a one-stop shop for services such as PCB fabrication, electronic component sourcing, pcba assembly function testing, and final product assembly. We manufacture electronic PCB/PCBA in a number of industries, including smart home systems, consumer electronics, automotive electronics, communication, industrial control, medical, and security. We are happy to have visitors.