Dongguan huangjiang vision maintenance technology center. According to 39 Health Network, Dongguan Huangjiang Vision Maintenance Technology Center can wash eyes. Vision Maintenance Science and Technology Center is located at Room 5 10 1 Jiabin Road, Huangjiang Town, Dongguan City, Guangdong Province. It is a company engaged in technical service, technical development, technical consultation, technical exchange, technology transfer, technology promotion, glasses sales, rehabilitation AIDS adaptation service, health consultation service and first-class medical device sales.