Zhengzhou international trade (breathing curtain wall)
                        Zhengzhou international trade center curtain wall area of 6 square square timber, adopts double breathing curtain wall, it is compared with the traditional technique of the curtain wall, when the heating can save energy 42% - 52%; Refrigeration can save energy 38% - 60%. For construction curtain wall opened a new chapter in the development of energy saving technology. Also due to the use of double skin facade has greatly improved the whole curtain wall sound insulation effect.