No.79 Xiacheng District Popularity Ranking Hangzhou Zhejiang No.12 Cheng Shi Ji Chu Facilities No.25 Water Treatment Equipment No.34 Water Conservancy Engineering No.41 Drainage Systems No.43 Shui Zi Yuan No.46 Sewage Treatment No.53 Shui Chu Li Wei Hu No.54 Water Treatment Engineering No.62 Water Treatment Technology No.64 Drainage No.70 Water Treatment No.77 Water 省级高新技术企业 科技型中小企业 省科技型中小企业 高新技术企业 ISO9001认证 ISO14001认证