Can a child's Tianfu Tong health code be used in two Tianfu?

Of course. Tianfutong is interoperable, and the child's Tianfutong health code can be used in two Tianfu places without being affected. Tianfutong is a comprehensive municipal transportation platform built by Chengdu Tianfutong Financial Services Co., Ltd., which has undertaken all the business of the former Chengdu City Tongka Co., Ltd.