Wuhan Sanjiang Import & Export Company Limited (WSIEC) is, as an subordinated company of China Sanjiang Space Group, in charge of the international sales and marketing of the products manufactured by the factories of China Sanjiang Space Group. Sanjiang Electronic Technology is a leading large-scale hi-tech enterprise specialized in developing and manufacturing of audio and video CODEC ***** mainly provide the products used in surveillance and security field, which includes digital video recorder cards, embedded digital video recorder and digital video server. More than 25 kinds of DVR cards and embedded DVR covers 4, 8 and 16 channels and CIF, half-D1 and D1 compression format and are widely used in residential, commercial, industrial and governmental fields.