All we do is always associated with our tenet " Customer first, Trust first, devoting on the food packaging and environmental protection for Intrinsic Silicon Wafer Semicondutor, Metal Gutter Machine , Metal Floor Deck Sheet Roll Forming Machine , Pipe Profile Forming Machine , Our tenet is "Reasonable prices, economical production time and very best service" We hope to cooperate with much more shoppers for mutual enhancement and benefits. Our solutions are broadly acknowledged and dependable by users and may meet consistently developing economic and social requires for Intrinsic Silicon Wafer Semicondutor, 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.