China yongan gas station. According to the public comment website, the oil products of Yong 'an Gas Station of China Petroleum are all qualified products, and the quality of the oil products is very good. Chengdu, referred to as "Rong" for short, is also called Rongcheng and Jincheng, a prefecture-level city under the jurisdiction of Sichuan Province, a provincial capital, a sub-provincial city, a megacity, a national central city and a world food capital.