No.100 Yuhua District Popularity Ranking Shijiazhuang Hebei No.5 Water Investment No.5 Shui Wu Gui Hua No.6 Water Safety No.6 Water Treatment Technology No.6 Shui Chu Li Wei Hu No.6 Water Treatment Engineering No.7 Shui Zi Yuan No.8 Water Supply and Drainage Design No.8 Sewage Treatment No.8 Water Supply and Drainage Engineering No.9 Water Supply and Drainage No.9 Environmental Protection Products 国家高新技术企业 高新技术企业 发明专利 实用新型专利 省级高新技术企业 环保工程专业承包