Our independent research and development with independent intellectual property rights of "green energy-saving windows and doors" series - Intelligent hollow electric shutters, nano energy-saving glass windows and doors, dimming glass, both because of its environmental protection, energy conservation, noise, durable, decorative variety, etc., is widely used in modern construction of the indoor and outdoor decoration, the other "mirror" is our virtue in smart glass for many years experience in production and development of the latest high-tech R & D products.