Changsha Yuhua District Hunan Shi Zheng Gong Yong Engineering Construction Lighting Landscaping Greening Landscaping Engineering Municipal Engineering Gong Cheng Cheng Bag Cheng Shi Huan Wei Construction Engineering Shi Zheng Gong Cheng Shi Engineering Environmental Treatment City Road Road Lighting City Township Construction 守合同重信用企业 科技型中小企业 省级高新技术企业 省科技型中小企业 国家专利 市政公用工程施工总承包