70 degrees motorized dampers for ductwork

{"cid":"91186250","title":"Galvanized Steel Manual Air Backdraft Valve For Ductwork System","imgUrl":"https:\/\/img.ismap.com\/nimg\/cd\/41\/82690a888b172ee5200b17fa86b0-200x200-1.jpg","attrs":{"Price":"can negotiate","Brand Name":"RM","Model Number":"RM20062201","Minimum Order Quantity":"50 pcs","Delivery Time":"15-20 days","Certification":"ISO","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"10000 pieces per month","Packaging Details":"wooden case","Name":"Galvanized Steel Manual Air Valve Backdraft Valve For Ductwork System","Type":"HVAC Systems,Ventilation,Air Conditioning","Feature":"Durable,HVAC System,Easy,hign efficiency,control the air volume","Diameter":"51-400mm"}}