No.302 Shapingba District Popularity Ranking Chongqing No.5 Water Pipes No.9 Energy Saving and Environmental Protection Equipment No.11 Water Treatment Equipment No.12 Environmental Equipment No.12 Water Purification Technology No.20 Water Engineering No.20 Water Construction No.20 Water Services No.20 Water Conservancy Engineering No.21 Shui Wu Gui Hua No.21 Water Investment No.21 Pipes 创新型企业 市级知识产权优势企业 高新技术企业 省级高新技术企业 专精特新企业 发明专利 实用新型专利 国家发明专利 市级高新技术企业 CE认证