Why should my SF Express be sent from Zhengzhou to Shijiazhuang first and then to Shijiazhuang?

express delivery is to go to the capital city of the province first, and then to the capital city of the target province. The reason why SF Express sent from Zhengzhou to Shijiazhuang should be sent to Zhengzhou first and then to Shijiazhuang is that the express delivery needs to be transferred to the provincial capital city first, then to the provincial capital city of the target province, and then to the destination. All express delivery is based on the level of outlets, and it will be sent to the outlets at the provincial capital level for transit, and the express truck route is also fixed.