Rice noodles. According to Cenxi Tubao. com, it is one of the traditional customs of Cenxi to use Guiyi stone mill wet powder and Sanbao dry powder stone mill rice flour as dishes at weddings and birthday parties. Cenxi City, formerly known as Yizhou, is a county-level city under the jurisdiction of Guangxi Zhuang Autonomous Region, managed by Wuzhou City, located in the southeast of Guangxi Zhuang Autonomous Region, at the junction of Guangdong and Guangxi.