双箭股份：公司长期深耕于输送带行业

Group 1 - The company, Shuangjian Co., has been deeply engaged in the conveyor belt industry for a long time [1] - As a national high-tech enterprise, the company has accumulated a large number of core patents and non-patent technologies [1] - The company has developed a large-scale and technically strong R&D team [1]