双箭股份：公司主业为橡胶输送带业务，产品主要用于工业散货物料搬运

Group 1 - The company, Shuangyan Co., Ltd. (002381.SZ), responded to an investor inquiry regarding the positive impact of the national push for deep earth economy on its operations [2] - The company's main business focuses on rubber conveyor belts, which are primarily used for the handling of industrial bulk materials [2] - Shuangyan Co. plans to develop various types of conveyor belt products based on market demand to enhance the automation level of material handling systems [2]