The key to our success is "Good Product Quality, Reasonable Price and Efficient Service" for Metal Core PCB, Copper Base pcb , Smart pcb , Tefa pcb Manufacturing , Striving hard to attain continual success determined by high quality, reliability, integrity, and complete understanding of current market dynamics. The really abundant projects administration experiences and just one to one particular provider model make the substantial importance of organization communication and our easy understanding of your expectations for Metal Core PCB, We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information if you have any questions. We are glad to work for every client.