Chengdu Changyu Technology Co., Ltd. Is a professional enterprise engaged in communication antenna. At present, our mainly products including GPS antennas, Navigation antenna, GPS/GSM antennas, 3G antennas and Wireless commantenna etc. Furthermore, we also sell all kinds of RF connectors, RF adaptors, interface cables, etc. Our products are commonly used in the following fields: Electric bicycles, motors, speakers, toys, telecommunications, etc. As well as we can develop new products according to market demants and make various high-quality antenna in accordance with the requirements of customer. Our engineers also utilize advanced microwave circuit and system design software to develop microwave circuits and their related products. We have executed a strict and complete quality control system, which ensures that each product can meet the requirements of customers. With the excellent service and reputation, our products have been exported to many countries and regions all over the world. Currently, Our products are RoHS compliant. With strict quality control to maintain a defect rate under 0.1%. Nevertheless, to guarantee you the quality of every product from us. We sincerely expect to establishing long-term and win-win business relationship with you.