Shuangnan Community Sub-district Office. According to local treasure, Chengdu Ganghui Tiandi belongs to Shuangnan Community Sub-district Office. Chengdu, a prefecture-level city under the jurisdiction of Sichuan Province, is also called Rongcheng and Jincheng. It is the capital of Sichuan Province, a sub-provincial city, a mega-city, a national central city, and a core city of the twin-city economic circle in Chengdu and Chongqing. It is an important national high-tech industrial base, trade logistics center and comprehensive transportation hub approved by the State Council, and an important central city in the western region.