Shenzhen Welsun Electronic established in 2006,is a professional Printed Circuit Boards (PCB) manufacturer with 600 people. Our factory is located in Guanlan Town, Shenzhen City.We have already been approved by UL,ISO9001,ISO/TS16949 and RoHS certificates so far.we have already done is 25,000m2 per month, With the concept of " Continuous improving", we are developing steadily.we are able to provide a wide product mix.from simple single sided PCB, double sided printed circiut board to complex multi-layers pcb for advanced high-tech enterprises to world-wide customers, Applications cover Security,power supply, Led lighting, telecom, industrial control, Auto, consumer electronics. we can satisfy our customers, and make a good development together.