1. Zhengjiashan Village Cold Rice Noodles (Nanping wanda plaza Pedestrian Street Store).
2. Binhe Middle Road, Shuikousi Farmers Market.
3. East Section of Changzhou Avenue, Zhongshan Road Street, Yongchuan District.
4. Nanyunzao Road, Miaoxing Town.
These are some places in Chongqing where you can wholesale cold rice noodles. I hope it helps you. If you need more information, you can go to these places for consultation.