گوانگزو Zhengfeng ٽيڪنالاجي ڪمپني, لميٽيڊ. focuses on the manufacturing of display devices, with products including vertical advertising displays, screens, ڪانفرنس مشينون, ڀت تي لڳل اشتهارن جي مشين, صنعتي ڪمپيوٽرن, gaming machines, and other screen display devices.