The South Branch Hub Project of the Ganjiang River Downstream Comprehensive Treatment Project is one of the main hub projects of Ganjiang River comprehensive treatment, located in Changdong Town, Jiangxi Province. The concrete production system of the Nanzhi Hub is equipped with two HZ150-1S4000L pre cooled forced concrete mixing plants, designed, manufactured, and debugged by Hangzhou Jianghe Electromechanical Equipment Engineering Co., Ltd.