Chongqing Nan'an District No.25 Industrial Supplies No.38 Industrial Products No.54 Waterproofing No.54 Waterproofing Engineering No.58 Drainage Systems No.59 Sewage Treatment No.59 Waterproofing Technology No.65 Water Conservancy Hydropower Engineering No.70 Transportation Engineering No.83 Water Treatment No.99 Drainage Water 高新技术企业 省级高新技术企业 市级高新技术企业 市级创新型中小企业 企业技术中心 发明专利 实用新型专利 ISO9001认证 工业产品生产许可证 ISO14001认证 OHSAS18001认证