Within the circle with radius of 60 km of Langfang, there are two municipalities directly under the central authority i.e. Beijing and Tianjin, some counties and cities of Hebei province, with more than 30 million permanent residents. Within the circle with radius of 500 km, there are 11 cities of more than a million population, among which, there are more than 200 million permanent residents, and the area accounts for 6.1% that of the country, it is the golden area of high population density, concentrated cities, developed industry and commerce, great market capacity and strong purchasing power in the north of China. In the Bohai Economic Rim, Langfang is located in the core region of strategic development due to its unique location and traffic advantages. Especially the establishment and implementation of the regional plan of Beijing, Tianjin and Hebei metropolitan circle and the accelerated construction of Tianjin Binhai New Area provide Langfang, which occupies the favorable location -- in the metropolitan circle of around Bohai Sea and of Beijing, Tianjin and Hebei, with a historic development opportunity to realize its connection to the infrastructures and industries of Beijing and Tianjin and accelerated development.