No.281 Gongshu District Popularity Ranking Hangzhou Zhejiang No.5 Environment Consulting No.5 Huan Jing Wu Ran Zhi Management No.5 Shui Wu Ran Zhi Management No.7 Jian Zhu Nuan Tong No.9 Wu Ran Zhi Management No.9 Fei Water Treatment No.9 Huan Jing Ying Xiang Ping Jia No.10 Wu Ran Control No.10 Water Supply and Drainage Design No.11 Water Supply and Drainage Engineering No.11 Water Supply and Drainage No.11 Qi Ye Xin Yong 高新技术企业 省级高新技术企业 科技型中小企业 省科技型中小企业 省级创新型中小企业 国家高新技术企业 安全生产许可证