Changsha Changsha County Hunan No.14 Huan Wei No.15 La Ji Processing No.18 Gu Ti Fei Materials No.19 Public Health No.59 Environmental Protection Products No.72 Testing No.80 Environmental Technology Environmental Treatment Environmental Protection Processing Environmental Engineering Environmental Treatment Huan Bao / Energy Saving 理事单位 科技型中小企业 专精特新小巨人企业 省科技型中小企业 高新技术企业 省级高新技术企业 发明专利 实用新型专利