Changsha Yuelu District Hunan No.19 Chemicals Design No.19 Chromatography No.21 Salt Industries No.24 Metal Products No.25 Tian Jia Agents No.31 Tu Mu Engineering No.32 Concrete No.33 Plain Materials No.34 Food Additives No.40 Industrial Construction No.54 Jie Neng Jian Pai No.87 Laser Technology 高新技术企业 科技型中小企业 省级专精特新中小企业 专精特新小巨人企业 省级高新技术企业 省科技型中小企业 省级创新型中小企业 民营科技企业 发明专利