Shenzhen Shenglong Electronics Co., Ltd.   

"Sheng Long" mobile phone card number backup device is a new and practical fashion product. It is one of the essential tools for mobile phone family. This product can conveniently and quickly backup telephone book data in various cell phone cards to the backup device, and also easily copy the telephone book data stored in the backup device to the mobile phone card. This product has a number of proprietary technology, counterfeit and research, and is seeking distributors from all over the country. ...