When was the first seal of Tang 'an in Chongzhou repaired?

20 15. Tang 'an Xi Shou is located in chongzhou city, Chengdu. 20 15 is completed, and the greening rate of the whole community is 30%. Developed by Chengdu Sheng Yuan Real Estate Development Co., Ltd., Tang 'an Xi Shou Community consists of five high-rise residential buildings, with complete facilities, a large supermarket nearby and convenient life. Chongzhou, formerly known as Zhou Shu, is a county-level city under the jurisdiction of Sichuan Province and managed by Chengdu. It borders Wenjiang District and Shuangliu District of Chengdu in the east, Xinjin District in the south, Dayi County in the west, Dujiangyan City in the north and Wenchuan County in the northwest.