No.330 Qiantang District Popularity Ranking Hangzhou Zhejiang No.7 Wu Ran Fang Zhi Engineering No.8 Huan Jing Wu Ran Zhi Management No.10 Sheng Tai Xiu Fu No.13 Wu Hai Chemical Processing No.13 Zi Yuan Zong He Li Yong No.28 Sewage Treatment No.30 Carbon Peak No.33 Shui Chu Li Wei Hu No.34 Water Treatment Engineering No.38 Jie Neng Jian Pai No.38 Drainage No.38 Water Treatment Technology 专精特新企业 国家高新技术企业 省级高新技术企业 高新技术企业 科技型中小企业 省科技型中小企业