Shenzhen CASTEL Wireless Telecommunications Co., Ltd. (hereinafter referred to "CASTEL Wireless"), is a subsidiary of Casil Telecommunications Holdings Limited (Hong Kong Stock Listed, listing No.:1185, a co-founder of China GPS association). Our company has been devoted to the application of GPS technology, RFID technology and wireless broadband access technology with the research and production of related products. Supported by strong technology resources of China Aerospace Industry and depending on Hong Kong and Shenzhen R&D centers, our company focuses on developing market in China, Asia, Europe and America. Our company has become a high-tech enterprise integrating the R&D, manufactur ... more