Shenzhen Dongyihaoli Technology Co., Ltd. is engaged in security product research, development, production and marketing. We are a limited liability company. Our products sell well in China and are exported to the Middle East, North Africa, Europe, America, Southeast Asia and other parts of the world. Our company was designated as the partner of China's Public Safety Department, police stations, courts and other local governments. Our products are applied in Beijing 2008 Olympic Games, 2009 ...