Longan District, Anyang City. Anyang second-hand electric tricycle is a platform for free transfer and release of purchase information. Baidu map shows that the tricycle market is located in Longan District, Anyang City. Anyang is one of the eight ancient capitals in China, and the other seven are Beijing, Xi, Luoyang, Kaifeng, Nanjing, Hangzhou and Zhengzhou.