Since its foundation in 2007, Tianjin ZIWIN Technology Co. Ltd, a national high-tech company, specializes in the design, engineering, manufacturing and sales of high-quality CCTV surveillance equipment including IR speed dome camera, pan-tilt head/positioner, long rang laser PTZ camera, IR thermal imaging PTZ camera, dual-vision PTZ camera, camera housing enclosures, and provide custom PTZ products to meet our customers' various system/project requirements.