Guangxi Nanning Duning Ventilation Protection Equipment Co., Ltd., established on 2007-06-26, Business scope includes general items:Civil Air Defense Engineering Protective Equipment,chemical defense(Filtration)Ventilation equipment,the fire,ventilation,Air conditioning purification,building materials(wood removal),steel,Research and development of water treatment machinery and equipment series products,manufacture,Sales,Installation and technical service(Except for special regulations of the state);Construction mechanical and electrical engineering installation;the fire,Refrigeration and HVAC system engineering installation;Environmental Engineering Governance(Operate within the validity period with the qualification certificate);Dust removal equipment,Noise reduction equipment,Smoke fire damper,smoke vent,Axial flow fire exhaust fan,Centrifugal Fire Exhaust Fan,fan,valve,Development of fire doors,manufacture,Sales and installation;activated carbon-catalyst,Research and development of marine purification system,manufacture,Sales;road general cargo transportation;Manufacture of special equipment for environmental protection;Environmental protection special equipment sales(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)