Shenzhen Polite metal products CO.,LTD in vehicle monitoring field for 8 years history, It was formally founded in 2010,Focus on the research, development and sales of automobile electronic equipments. It was begin with the MOBILE DVR, Shenzhen Polite metal products CO.,LTD have published a series of automobile electronic equipments in the past 2 years. Those products not only very popular in China but also have a good market abord. With the development of data storage and Video monitoring ...