Chongqing Jiulongpo DistrictNo.13 Energy Saving and Environmental Protection EquipmentNo.20 Water Treatment ValvesNo.21 Industrial SuppliesNo.21 ValvesNo.21 Environmental EquipmentNo.23 Construction Fire ProtectionNo.26 Submersible PumpsNo.27 Water PumpsNo.31 Han MachinesNo.32 Liang InstrumentsNo.32 HydropowerNo.34 Industrial Products驰名商标名牌产品企业技术中心标准起草单位创新型企业知识产权示范企业ISO9001认证ISO14001认证OHSAS18001认证