Company Introduction

As one of the leading suppliers of SIM card backup, Shenzhen Shenglong Electronics Co., Ltd. is a professional manufacturer. We are specialized in designing and producing SIM card backup with different models and features. All the products have got CE approvals. Through years of working hard, now we have set up a factory covering 1,200 square meters with more than 100 employees and 10 R&D members. We''re dedicated in designing new products so that we can meet the newest requirements on the market. We also keep improving the quality of the products based on the customers'' benefit. As an original manufactory of these products, we only sell what we designed and produced by our own. Consequently, we can provide our esteemed clients with qualified products together with very competitive prices and on-time services. Our daily output of SIM card backup now reached 7,000 to 10,000 pieces. Furthermore, on-time delivery is guaranteed. With effort and passion of all our staff, we will be one of your trustworthy partners!. We also welcome your OEM, ODM orders.