Hangzhou Gongshu District ZhejiangNo.29 Vocational HealthyNo.34 Water EngineeringNo.36 Water ServicesNo.36 Water ConstructionNo.39 Water InvestmentNo.39 Water SafetyNo.40 Shui Wu Gui HuaNo.55 Shui Zi YuanNo.99 Water Water Conservancy Energy Saving and Environmental Protection Materials Technology国家高新技术企业高新技术企业省级高新技术企业科技型中小企业省科技型中小企业ISO9001认证OHSAS18001认证